JP2018030797A - Herbicide composition and use method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a herbicide composition that is highly safe for cultivation plants, and can effectively control a wider range of weeds at a lower dosage by a synergistic effect of active ingredients, a use method and a weed controlling method.SOLUTION: A herbicide composition contains, as an active ingredient, two or three herbicides combining: saflufenacil; at least one compound selected from photosynthesis inhibitors; and/or at least one compound selected from VLCFA (very-long-chain fatty acid) synthesis inhibitors that exhibit effect in soil treatment. There are also provided a method for use of the herbicide composition and a weed controlling method.

Description

The present invention is a mixture of two or three herbicides in which saflufenacil is combined with one or more herbicides selected from photosynthesis (photosystem II) inhibitors and / or VLCFA (very long chain fatty acid) synthesis inhibitors. Thus, the present invention relates to a composition having a broad herbicidal spectrum synergistically with respect to various weeds, a method of using the herbicide composition, and a method of controlling weeds.

  Saflufenacil is a known herbicide used in and outside Japan (see Non-Patent Document 1), and it is known to exert its effect by treating the soil before weed germination. This agent is a PPO (protoporphyrinogen oxidase) inhibitor (hereinafter referred to as “PPO inhibitor”) having selectivity for many crops such as corn, soybean, wheat, cotton, sunflower, fruit tree, rice, etc. However, it is hardly metabolized in broad-leaved weeds, and the rapid metabolism in the above crops is a selective factor among weed crops. Therefore, it is known that the control effect with respect to the grass family grass which has a quick metabolic effect is low (refer nonpatent literature 2). Amethrin, atrazine, cyanazine, desmethrin, dimetamethrin, promethone, promethrin, propazine, CAT (simazine), cimetrin, terbumethone, terbutyrazine, terbutrin and trietadine are also photosynthesis (photosystem II) inhibitors (hereinafter referred to as “photosynthesis inhibitors”). Moreover, it is a well-known herbicide used domestically and internationally (refer nonpatent literature 1), and it is known that an effect will be exhibited mainly by soil treatment before germination of a broad-leaf weed. The chloroacetamide compounds acetochlor, alachlor, butachlor, dimethachlor, dimethenamide, dimethenamide-P, metazachlor, metolachlor, S-, which are VLCFA (very long chain fatty acid) synthesis inhibitors (hereinafter referred to as "VLCFA synthesis inhibitors") Metrachlor, petoxamide, pretilachlor, propachlor, propisochlor and tenyl chlor are also known herbicides used domestically and internationally (see Non-Patent Document 1), and weeds, particularly grass weeds (monocotyledonous weeds). In the following, it is known that the effect is exhibited by treating the soil before germination).

European Patent Application No. 0443059

The Pesticide Manual 17th Edition (2015, British Crop Production Council) "Special Feature: 12th IUPAC International Conference on Agricultural Chemistry" Journal of Pesticide Science Society of Japan 36 (1), (2011) 142 – 171,167p

However, since weeds that cannot be controlled by using these active ingredients alone remain, the herbicide treatment is often required again for the residual grass treatment. Even with the combined use / mixture of multiple herbicides, it is difficult to control many types of weeds at once. Therefore, creation of a herbicidal composition that is highly safe for cultivated plants and that can effectively control more types of weeds and the like with a lower dose is desired. Gramineous weeds and broadleaf weeds often differ greatly in herbicide sensitivity, and it is difficult to control these weeds at the same time, especially with herbicides with crop selectivity. In addition, various weeds having resistance to herbicides have become a problem in recent years, and a herbicidal composition and a weed control method that can simultaneously control such herbicide-resistant weeds are required.

The present inventor has eagerly searched for a novel herbicidal composition in order to solve the above-mentioned problems, and surprisingly, saflufenacil known as a PPO inhibitor and photosynthesis (photochemical system) exhibiting an effect in soil treatment. II) Excellent synergistic effect by mixing as an active ingredient two or three kinds of herbicides in combination with one or more herbicides selected from inhibitors and / or VLCFA (very long chain fatty acid) synthesis inhibitors It was found that can be seen. It has been found that a high herbicidal effect is exerted on many kinds of weeds, especially in the genus Poaceae and Poaceae, and safe for cultivated plants, with treatment doses smaller than the respective standard doses. The present invention has been completed.

That is, the present invention
[1] A herbicide containing, as active ingredients, saflufenacil and a VLCFA (very long chain fatty acid) synthesis inhibitor and / or one or more compounds selected from photosynthesis (photosystem II) inhibitors Composition,
[2] The herbicidal composition according to [1], comprising saflufenacyl and one or more compounds selected from VLCFA (very long chain fatty acid) synthesis inhibitors as active ingredients,
[3] The herbicidal composition according to [1], comprising saflufenacyl and one or more compounds selected from photosynthesis (photochemical system II) inhibitors as active ingredients,
[4] It contains saflufenacil, one or more compounds selected from VLCFA (very long chain fatty acid) synthesis inhibitors, and one or more compounds selected from photosynthesis inhibitors as active ingredients. A herbicide composition according to [1],
[5] 1 to 1000 parts by mass of one or more compounds selected from a VLCFA (very long chain fatty acid) synthesis inhibitor or a photosynthesis (photosystem II) inhibitor with respect to 1 part by mass of saflufenacil And the herbicidal composition according to [1] to [3],
[6] With respect to 1 part by mass of saflufenacil, 1 to 1000 parts by mass of one or more compounds selected from photosynthesis (photosystem II) inhibitors and VLCFA (very long chain fatty acid) synthesis inhibitors are selected. The herbicidal composition according to [1] or [4], comprising 1 to 1000 parts by mass of one or more compounds,
[7] The photosynthesis (photochemical system II) inhibitor is amethrin, atrazine, cyanazine, desmethrin, dimetamethrin, promethone, promethrin, propazine, CAT (simazine), cimethrin, terbumetone, terbutyrazine, terbutrin and trietadine. [1], [1] 3] Herbicidal composition according to any one of [6] to [6],
[8] The herbicidal composition according to any one of [1], [3] to [6], wherein the photosynthesis (photosystem II) inhibitor is atrazine,
[9] VLCFA (very long chain fatty acid) synthesis inhibitors are acetochlor, alachlor, butachlor, dimetachlor, dimethenamide, metazachlor, metolachlor, S-metolachlor, petoxamide, dimethenamide-P, pretilachlor, propachlor, propisolol The herbicide composition according to any one of [1], [2], [4] and [6], which is chlor or tenyl chlor,
[10] Any one of [1], [2], [4] and [6], wherein the VLCFA (very long chain fatty acid) synthesis inhibitor is acetochlor, S-metolachlor, dimethenamide, and dimethenamide-P Herbicidal composition according to item,
[11] The photosynthesis (photosystem II) inhibitor is atrazine, and the VLCFA (very long chain fatty acid) synthesis inhibitors are acetochlor, dimethenamide, dimethenamide-P, and S-metolachlor. [1], [4 ] Or [6] the herbicidal composition according to any one of the above,
[12] A herbicidal composition characterized in that an effective amount of the herbicidal composition according to any one of [1] to [11] is treated with soil or foliage on non-agricultural land or agricultural land. How to use,
[13] A herbicide characterized in that an effective amount of the herbicidal composition according to any one of [1] to [11] is treated with soil before non-agricultural land or farmland before weeds are generated. How to use the composition,
[14] It is characterized by applying saflufenacyl and one or more compounds selected from VLCFA (very long chain fatty acid) synthesis inhibitors and / or photosynthesis (photosystem II) inhibitors simultaneously or with a time difference. Non-agricultural land, or weed control method in agricultural land,
[15] The photosynthesis (photosystem II) inhibitor is atrazine, and the VLCFA (very long chain fatty acid) synthesis inhibitor is acetochlor, dimethenamide, dimethenamide-P, and S-metolachlor. Weed control method,
[16] The weed control method according to [14] or [15], wherein the control weeds are Gramineae.
[17] The method for controlling weeds according to [14] or [15], wherein the weeds to be controlled are the genus Gramineae, or the genus Nagahagusa,
[18] The weed control method according to [14] or [15], wherein the weed belonging to the genus Gramineae, which is a weed to be controlled, is an Italian ryegrass.
[19] The weed control method according to [14] or [15], wherein the weed belonging to the genus Gramineae, which is a control target weed, is Poa annua.
About.

According to the herbicidal composition of the present invention, due to a synergistic effect, it is possible to exert an effect with a dose smaller than the dose that has been used alone, thereby reducing the environmental burden caused by the drug. . Also, compared to the case where each active ingredient is used alone, it has a synergistic effect on many kinds of weed species regardless of grass weeds and broad-leaved weeds. High effect on grass species. In addition, it is highly effective for grass species that have low herbicidal effects due to VLCFA (very long chain fatty acid) synthesis inhibitors such as acetochlor and photosynthesis (photosystem II) inhibitors such as atrazine, and the number of control can be reduced. The burden on the user can be reduced.

  The active ingredient used in the herbicidal composition of the present invention, saflufenacil, the photosynthesis (photochemical system II) inhibitors ametrine, atrazine, cyanazine, desmethrin, dimetamethrin, promethone, promethrin, propazine, CAT (simazine), cimethrin , Terbumetone, terbutyrazine, terbutrin and trietadine, and VLCFA synthesis inhibitors, acetochlor, alachlor, butachlor, dimethachlor, dimethenamide, dimethenamide-P, metazachlor, metolachlor, S-metolachlor, petoxamide, pretilachlor, propachlor , Propisochlor and tenyl chlor are known compounds described in The Pesticide Manual (Non-patent Document 1) and the like.

  Examples of the combination of active ingredients constituting the herbicidal composition of the present invention include, for example, a combination of saflufenacil and a photosynthesis (photosystem II) inhibitor such as saflufenacil and amethrin, saflufenacil and atrazine, saflufenacil and cyananadine, saflufenacil and desmethrin. , Saflufenacil and dimetamethrin, saflufenacil and promethon, saflufenacil and promethrin, saflufenacil and propazine, saflufenacil and CAT (simazine), saflufenacil and cymetrine, saflufenacil and terbumethine and saflufenacil and terbuthrazine and flubutaterine , Saflufenacil and atrazine, saflufenacil and Metorin or saflufenacil and terbutryn combinations are preferred, most preferred combination of saflufenacil and atrazine.

  The combination of saflufenacil and a photosynthesis (photosystem II) inhibitor is usually preferably from 1: 0.1 to 1000, more preferably from 1: 1 to 500, and most preferably from 1: 5 to 300.

In the combination of saflufenacil and VLCFA (very long chain fatty acid) synthesis inhibitor, for example, saflufenacil and acetochlor, saflufenacil and alachlor, saflufenacil and butachlor, saflufenacil and dimethachlor, saflufenacil and dimethatenamide,
Saflufenacil and dimethenamide-P, saflufenacil and metazachlor, saflufenacil and metolachlor, saflufenacil and S-metolachlor, saflufenacyl and petoxamide, saflufenacil and pretilachlor, saflufenacil and proptilachlor, saflufenacil and propacylol , Saflufenacil and acetochlor, saflufenacil and alachlor, saflufenacil and dimethenamide, saflufenacil and dimethenamide-P, saflufenacil and metolachlor, or a combination of saflufenacil and S-metolachlor, preferably saflufenacil and acetochlor, saflufenacil and dimethenafide, P And S-metolachlor Combined is particularly preferred.

The ratio of the combination of saflufenacil and VLCFA (very long chain fatty acid) synthesis inhibitor is usually preferably from 1: 0.1 to 1000, more preferably from 1: 1 to 500, and more preferably from 1: 5 to 300. Most preferred.

In order to exert a more preferable herbicidal effect, three or more active ingredients can be combined, and one or more compounds selected from saflufenacil, a photosynthesis (photosystem II) inhibitor, and VLCFA (very long chain fatty acid) synthesis A combination of one or more compounds selected from inhibitors is preferred. Such combinations include, for example, saflufenacil and amethrin and acetochlor, saflufenacil and amethrin and alachlor, saflufenacil and ametrine and butachlor, saflufenacil and amethrin and dimetachlor, saflufenacil and amethrin and dimethenamide, saflufenacil and amethnadine and amethnadine, And ametrine and metazachlor, saflufenacil and amethrin and metolachlor, saflufenacil and ametrine and S-metolachlor, saflufenacil and amethrin and petoxamide, saflufenacil and ametrine and pretilacrol, saflufenacil and amethrin and propacillin, saflunatrol and saflunatrol And ametrine and teni Crawl,

Saflufenacil and atrazine and acetochlor, saflufenacil and atrazine and alachlor, saflufenacil and atrazine and butachlor, saflufenacil and atrazine and dimetachlor, saflufenacil and atrazine and dimethenamide, saflufenacil and atrazine and dimethenamide-P, saflufenadine and dimethenamid-P And metolachlor, saflufenacil and atrazine and S-metolachlor, saflufenacil and atrazine and petoxamide, saflufenacil and atrazine and pretilachlor, saflufenacil and atrazine and propachlor, saflufenacyl and atrazine and propisochlor, saflufenacil and atrazine and proprazole

Saflufenacil and cyananadine and acetochlor, saflufenacil and cyananadine and alachlor, saflufenacil and cyananadine and butachlor, saflufenacil and cyananadine and dimethachlor, saflufenacil and cyananadine and dimethenamide, saflufenacil and cyananadine and dimethenamide-P, saflufenazine and dimethenamid-P And metolachlor, saflufenacil and cyananadine and S-metolachlor, saflufenacil and cyananadine and petoxamide, saflufenacil and cyananadine and pretilachlor, saflufenacil and cyananadine and propachlor, saflufenacil and cyananadine and propisochlor, saflufenacil and cyanadine and cyanazine and tenylchlor

Saflufenacil and desmethrin and acetochlor, saflufenacil and desmethrin and alachlor, saflufenacil and desmethrin and butachlor, saflufenacil and desmethrin and dimethachlor, saflufenacil and desmethrin and dimethenacil, saflufenacil and desmethrin and metamethasramide And metolachlor, saflufenacil and desmethrin and S-metolachlor, saflufenacil and desmethrin and petoxamide, saflufenacil and desmethrin and pretilachlor, saflufenacil and desmethrin and propachlor, saflufenacil and desmethrin and propisochlor, saflufenacil and descrothrin and despicrin Le,

Saflufenacil and dimetamethrin and acetochlor, saflufenacil and dimetamethrin and alachlor, saflufenacil and dimetamethrin and butachlor, saflufenacil and dimetamethrin and dimethachlor, saflufenacil and dimetamethrin and dimethamethine and dimethamethrin and dimethamethrin And metolachlor, saflufenacil and dimetamethrin and S-metolachlor, saflufenacil and dimetamethrin and petoxamide, saflufenacil and dimetamethrin and pretilachlor, saflufenacil and dimetamethrin and propachlor, saflufenacil and dimetamethrin and propisoclol, saflufenacil Dimethametryn and Thenylchlor,

Saflufenacil and prometon and acetochlor, saflufenacil and prometon and alachlor, saflufenacil and prometon and butachlor, saflufenacil and prometon and dimethachlor, saflufenacil and prometon and dimethenamide, saflufenacil and prometon and dimethenamide-P, saflufenacil and promethatone and dimethenamide-P And metolachlor, saflufenacil and prometon and S-metolachlor, saflufenacil and prometon and petoxamide, saflufenacil and prometon and pretilachlor, saflufenacil and prometon and propachlor, saflufenacil and prometon and propisochlor, saflufenacil and prometon and prometone and tenilchlor

Saflufenacil and promethrin and acetochlor, saflufenacil and promethrin and alachlor, saflufenacil and promethrin and butachlor, saflufenacil and promethrin and dimethachlor, saflufenacil and promethrin and dimethenacil, saflufenacil and promethrin and promethrinsapromeline And metolachlor, saflufenacil and promethrin and S-metolachlor, saflufenacil and promethrin and petoxamide, saflufenacil and promethrin and pretilachlor, saflufenacil and promethrin and propachlor, saflufenacil and promethrin and propisochlor, saflufenacil and prometholine and promethochlor Le,

Saflufenacil and propazine and acetochlor, saflufenacil and propazine and alachlor, saflufenacil and propazine and butachlor, saflufenacil and propazine and dimethachlor, saflufenacil and propazine and dimethenamide, saflufenacil and propazine and dimethenamide-P, saflufenadine and promethazamide and p And metolachlor, saflufenacil and propazine and S-metolachlor, saflufenacil and propazine and petoxamide, saflufenacil and propazine and pretilachlor, saflufenacil and propazine and propachlor, saflufenacil and propazine and propisochlor, saflufenacil and propazin and propenylchlor,

Saflufenacil and CAT (simazine) and acetochlor, saflufenacil and CAT (simazine) and alachlor, saflufenacil and CAT (simazine) and butachlor, saflufenacil and CAT (simazine) and dimetachlor, saflufenacil and CAT (simazine) and dimethenacil, and saflufenacil, C (Simazine) and dimethenamide-P, saflufenacil and CAT (simazine) and metazachlor, saflufenacil and CAT (simazine) and metolachlor, saflufenacil and CAT (simazine) and S-metolachlor, saflufenacil and CAT (simazine) and petoxamide, saflufenacil And CAT (simazine) and pretilachlor, saflufenacil and CAT (simazine) and propachlor, saflufenacil and C T and (simazine) professional Piso crawl, saflufenacil and CAT and (simazine) thenylchlor,

Saflufenacil and cimetrine and acetochlor, saflufenacil and cimethrin and alachlor, saflufenacil and cimethrin and butachlor, saflufenacil and cimethrin and dimetachlor, saflufenacil and cimetrin and dimethencil, saflufenacil and dimethenacil and dimethenaf-sameflusaline And metolachlor, saflufenacil and cimetrine and S-metolachlor, saflufenacil and cimetrine and petoxamide, saflufenacil and cimetrine and pretilachlor, saflufenacil and cimetrin and propachlor, saflufenacil and cimethrin and propisochlor, saflufenacil and cimetrine and propisochlor,

Saflufenacil and terbumetone and acetochlor, saflufenacil and terbumetone and alachlor, saflufenacil and terbumeton and butachlor, saflufenacil and terbumeton and dimethachlor, saflufenacil and terbumeton and dimethenamide, saflufenacil and terbumetone and dimetenafone And metolachlor, saflufenacil and terbumetone and S-metolachlor, saflufenacil and terbumeton and petoxamide, saflufenacil and terbumeton and pretilachlor, saflufenacil and terbumeton and propachlor, saflufenacil and terbumetone and propisochlor, saflufenacil and terbumeton and terbubate Le,

Saflufenacil and terbutyrazine and acetochlor, saflufenacil and terbutyrazine and alachlor, saflufenacil and terbutyrazine and butachlor, saflufenacil and terbutyrazine and dimethachlor, saflufenacil and terbutyrazine and dimethenamide, saflufenacil and terbutyrazine and ditertenadol And metolachlor, saflufenacil and terbutyrazine and S-metolachlor, saflufenacil and terbutyrazine and petoxamide, saflufenacil and terbutyrazine and pretilachlor, saflufenacil and terbutyrazine and propachlor, saflufenacil and terbutyrazine and propisoclol, saflufenacil Terbuthylazine and Thenylchlor,

Saflufenacil and terbutrin and acetochlor, saflufenacil and terbutrin and alachlor, saflufenacil and terbutrin and butachlor, saflufenacil and terbutrin and dimethachlor, saflufenacil and terbutrin and dimethenacyl, saflufenacyl and terbutrin and dimethentaline And metolachlor, saflufenacil and terbutrin and S-metolachlor, saflufenacil and terbutrin and petoxamide, saflufenacil and terbutrin and pretilachlor, saflufenacil and terbutrin and propachlor, saflufenacil and terbutrin and propisochlor, saflufenacil and terbuthroline and terbutoline Le,

Saflufenacil and trietadine and acetochlor, saflufenacil and trietadine and alachlor, saflufenacil and trietadine and butachlor, saflufenacil and trietadine and dimethachlor, saflufenacil and trietadine and dimethenacil, saflufenadine and trietazine and dimethatenadine And metolachlor, saflufenacil and trietadine and S-metolachlor, saflufenacil and trietadine and petoxamide, saflufenacyl and trietadine and pretilachlor, saflufenacil and trietadazine and propachlor, saflufenacil and trietadine and propisochlor, saflufenadil and trimethaine and propisochlor Le, preferably,

Particularly preferred are combinations of saflufenacyl, atrazine and acetochlor, saflufenacyl, atrazine and dimethenamide, saflufenacyl, atrazine and dimethenamide-P, and saflufenacyl, atrazine and S-metolachlor.

When combining one or two or more compounds selected from saflufenacil and a photosynthesis inhibitor and one or more compounds selected from a VLCFA synthesis inhibitor, the ratio is usually a tripartite ratio, Saflufenacil: photosynthesis inhibitor: VLCFA synthesis inhibitor may be about 1: 0.1 to 1000: 0.1 to 1000, preferably in the range of 1: 1 to 500: 1 to 500, and 1: 5 to 300: 5-300 is most preferred.

  The compounding ratio of the active ingredient compound in 100 parts by mass of the herbicidal composition of the present invention can be adjusted as necessary, and is suitably selected from the range of about 0.01 to 90 parts by mass in 100 parts by mass. What is necessary is just to be 0.1 mass part-50 mass parts.

  In the herbicidal composition of the present invention, the active ingredients of the above combination may be used as they are without adding other ingredients, but usually they should be formulated in a convenient form according to conventional methods for agricultural chemical formulations. Is preferred. That is, one or more compounds selected from saflufenacyl and a photosynthesis inhibitor and one or more compounds selected from a VLCFA synthesis inhibitor are used as appropriate inert carriers, or as necessary. In combination with the adjuvant, it is mixed in an appropriate ratio and dissolved, separated, suspended, mixed, impregnated, adsorbed or adhered to an appropriate dosage form, for example, a suspension (flowable), emulsion, liquid, hydration What is necessary is just to formulate and use for an agent, a granule wettable powder, a granule, a powder agent, a tablet, a pack agent, etc.

  The herbicidal composition of the present invention can contain, in addition to the active ingredients, additive ingredients that are usually used in agricultural chemical formulations as necessary. Examples of the additive component include a carrier such as a solid carrier and a liquid carrier, a surfactant, a dispersant, a wetting agent, a binder, a tackifier, a thickener, a colorant, a spreading agent, a spreading agent, and an antifreezing agent. , Anti-caking agents, disintegrants, decomposition inhibitors and the like. In addition, you may use a preservative, a plant piece, etc. for an additional component as needed. These additive components may be used alone or in combination of two or more.

  The inert carrier that can be used in the present invention may be either solid or liquid. Examples of materials that can be used as a solid carrier include soybean powder, cereal powder, wood powder, bark powder, saw powder, tobacco stem powder, walnut shell powder, bran, fiber powder, residues after extraction of plant extracts, and pulverized synthesis. Synthetic polymers such as resins, clays (for example, kaolin, bentonite, acid clay), talc (for example, talc, pyrophyllite, etc.), silicas (for example, diatomaceous earth, silica sand, mica, white carbon (hydrous finely divided silicon, Synthetic high-dispersion silicic acid, also called hydrous silicic acid, may contain calcium silicate as the main component depending on the product.)}, Activated carbon, sulfur powder, pumice, calcined diatomaceous earth, brick ground, fly ash, sand, calcium carbonate, calcium phosphate Inorganic mineral powders such as ammonium sulfate, phosphorous acid, ammonium nitrate, urea, ammonium sulfate, etc., chemical fertilizers such as compost, polyethylene, polypropylene, polychlorinated Plastic carriers such as vinylidene, inorganic hollow bodies, hollow plastic, fumed silica (fumed silica, white carbon) can be exemplified, and these may be used alone or in the form of a mixture of two or more thereof.

  The material which can be a liquid carrier is selected from those having solvent ability itself, and those having no solvent ability and capable of dispersing the active ingredient compound with the aid of an auxiliary agent, for example, water, Alcohols (eg, methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.), ketones (eg, acetone, methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, etc.), ethers (eg, ethyl ether, dioxane, cellosolve, Dipropyl ether, tetrahydrofuran, etc.), aliphatic hydrocarbons (eg, kerosene, mineral oil, etc.), aromatic hydrocarbons (eg, benzene, toluene, xylene, solvent naphtha, alkylnaphthalene, etc.), halogenated hydrocarbons ( For example, Loethane, chloroform, carbon tetrachloride, chlorinated benzene, etc.), esters (eg, ethyl acetate, diisopropyl phthalate, dibutyl phthalate, dioctyl phthalate, etc.), amides (eg, dimethylformamide, diethylformamide, dimethylacetamide, etc.) ), Nitriles (eg acetonitrile), dimethyl sulfoxides and the like. These may be used alone or in combination of two or more.

  Examples of auxiliary agents include surfactants exemplified below, dispersion stabilization, adhesion and / or binding aids, fluidity improvers, peptizers, antifoaming agents, preservatives, etc., and these auxiliary agents Can be used according to the purpose. The adjuvant may be used alone, or in some cases, two or more kinds of adjuvants may be used in combination, and in some cases, no adjuvant may be used.

  Examples of surfactants used as dispersants and wetting agents include sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, sucrose fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene resin acid esters, polyoxyethylene fatty acid diesters, Polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene dialkyl phenyl ether, polyoxyethylene alkyl phenyl ether formalin condensate, polyoxyethylene polyoxypropylene block copolymer, polystyrene polyoxyethylene Block polymer, alkyl polyoxyethylene polypropylene block copolymer ether, polyoxyethylene Alkylamine, polyoxyethylene fatty acid amide, polyoxyethylene fatty acid bisphenyl ether, polyalkylene benzyl phenyl ether, polyoxyalkylene styryl phenyl ether, acetylene diol, polyoxyalkylene-added acetylene diol, polyoxyethylene ether type silicone, ester type Nonionic surfactants such as silicone, fluorosurfactant, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil,

Alkyl sulfate, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, polyoxyethylene styryl phenyl ether sulfate, alkyl benzene sulfonate, alkyl aryl sulfonate, lignin sulfonate, alkyl sulfo succinate , Naphthalene sulfonate, alkyl naphthalene sulfonate, salt of formalin condensate of naphthalene sulfonic acid, salt of formalin condensate of alkyl naphthalene sulfonic acid, fatty acid salt, polycarboxylate, polyacrylate, N-methyl- Anionic surfactants such as fatty acid sarcosinate, resinate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkylphenyl ether phosphate, laurylamine hydrochloride, stearylamine Acid surfactant, oleylamine hydrochloride, stearylamine acetate, stearylaminopropylamine acetate, cationic surfactants such as alkylamine salts such as alkyltrimethylammonium chloride and alkyldimethylbenzalkonium chloride, amphoteric such as amino acid type or betaine type Surfactant etc. are mentioned. These surfactants may be used alone or in combination of two or more.

Examples of the binder and tackifier include carboxymethyl cellulose and salts thereof, dextrin, water-soluble starch, xanthan gum, guar gum, sucrose, polyvinyl pyrrolidone, gum arabic, polyvinyl alcohol, polyvinyl acetate, sodium polyacrylate, and an average molecular weight of 6000 to 20000. Polyethylene glycol, polyethylene oxide having an average molecular weight of 100,000 to 5,000,000, phospholipid (eg, cephalin, lecithin, etc.) cellulose powder, dextrin, modified starch, polyaminocarboxylic acid chelate compound, cross-linked polyvinyl pyrrolidone, maleic acid and styrenes A polymer, a (meth) acrylic acid copolymer, a half ester of a polymer composed of a polyhydric alcohol and a dicarboxylic acid anhydride, a water-soluble salt of polystyrene sulfonic acid, Emissions, terpene, polyamide resins, polyacrylate, polyoxyethylene, wax, polyvinyl alkyl ethers, alkylphenol-formalin condensates, synthetic resin emulsions, and the like.

  Examples of the thickener include xanthan gum, guar gum, diyutane gum, carboxymethylcellulose, polyvinylpyrrolidone, carboxyvinyl polymer, acrylic polymer, starch derivative, water-soluble polymer such as polysaccharide, high-purity bentonite, fumed silica (fumed Inorganic fine powders such as silica and white carbon.

  Flowability improvers can be used to improve the flowability of solid products. Examples of the fluidity improver include waxes, stearates, alkyl phosphate esters, and the like. The peptizer can be used as a dispersion peptizer in a suspension product. Examples of peptizers include naphthalene sulfonic acid condensates and condensed phosphates. Examples of the antifoaming agent include silicone oil. Examples of the preservative include 1,2-benzisothiazolin-3-one, parachlorometaxylenol, and butyl paraoxybenzoate.

  Examples of the colorant include inorganic pigments such as iron oxide, titanium oxide and Prussian blue, organic dyes such as alizarin dyes, azo dyes and metal phthalocyanine dyes.

  Examples of the antifreezing agent include polyhydric alcohols such as ethylene glycol, diethylene glycol, propylene glycol, and glycerin.

  Examples of adjuvants for preventing caking and promoting disintegration include polysaccharides such as starch, alginic acid, mannose, and galactose, polyvinylpyrrolidone, fumed silica (white carbon), ester gum, petroleum resin, sodium tripolyphosphate, Sodium hexametaphosphate, metal stearate, cellulose powder, dextrin, methacrylate copolymer, polyvinylpyrrolidone, polyaminocarboxylic acid chelate compound, sulfonated styrene / isobutylene / maleic anhydride copolymer, starch / polyacrylonitrile graft copolymer A polymer etc. are mentioned.

  Examples of the decomposition inhibitor include desiccants such as zeolite, quicklime and magnesium oxide, antioxidants such as phenolic compounds, amine compounds, sulfur compounds and phosphoric acid compounds, and ultraviolet absorbers such as salicylic acid compounds and benzophenone compounds. It is done.

  Examples of the preservative include potassium sorbate, 1,2-benzothiazolin-3-one, and the like. Furthermore, a functional spreading agent etc. can also be used as needed.

  The amount of the herbicidal composition of the present invention varies depending on various factors, such as the growth status of the cultivated plant, weather, environmental conditions, dosage form, application method, application location, application time, etc. What is necessary is just to select suitably from the range of about 0.05g-15000g per hectare, Preferably it is about 0.1g-10000g, More preferably, it is about 1g-7000g.

The amount of saflufenacyl used may be selected from the range of 0.5 g to 200 g as an active ingredient amount per hectare, and preferably 5 g to 80 g. The amount of photosynthesis (photosystem II) inhibitor used varies depending on the type of active ingredient, and may be adjusted as appropriate according to the amount of saflufenacyl at the above-mentioned ratio. For example, atrazine is 10 g to 10,000 g as an active ingredient amount per hectare. May be used by selecting from a range of 100 g to 3000 g, preferably 100 g to 3000 g. The amount of the VLCFA synthesis inhibitor used varies depending on the type of active ingredient, and may be appropriately adjusted at the above-mentioned ratio according to the amount of saflufenacyl. For example, acetochlor is from 100 g to 10,000 g as an active ingredient amount per hectare. What is necessary is just to select and use, Preferably it is good to use in the range of 200g-3000g. For example, S-metolachlor may be used by selecting from the range of 100 g to 10000 g as an active ingredient amount per hectare, and preferably 300 g to 3000 g. For example, dimethenamide and dimethenamide-P may be used by selecting from the range of 50 g to 5000 g as active ingredient amounts per hectare, and preferably 200 g to 1500 g.

  The method of using the herbicidal composition of the present invention is preferably obtained by spraying or applying to the weeds an amount effective for herbicidal action in the form of the formulation as it is, diluted appropriately with water or the like, or suspended. The herbicidal action can be expressed and the phytotoxicity to useful cultivated crops can be reduced.

  The herbicidal composition of the present invention may be applied to a region where useful plants grow, and may be applied by a commonly used method such as foliage application or soil application. The spraying time of the herbicidal composition of the present invention may vary depending on the weather conditions and the growing conditions of the cultivated plant, but it may be treated from before the growth of the weeds to be controlled to the early stage of growth, and the soil is treated before the growth. Is preferred. It is a characteristic of the herbicidal composition of the present invention that the herbicidal effect before growth is synergistically increased. However, it can also be widely applied during the initial growth period and growing period of crops and weeds.

  In addition, one or more compounds selected from saflufenacil which is an active ingredient having a synergistic effect of the herbicidal composition of the present invention and a photosynthesis inhibitor, and / or one or more compounds selected from a VLCFA synthesis inhibitor, It can be applied simultaneously or with a time difference. The target weeds can be controlled synergistically without adversely affecting the cultivated plants by formulating them separately and applying the other active ingredient during the remaining period of the other active ingredients. Specifically, it is used in the following manner.

  For application to the soil (soil application), it is applied to the soil surface before the emergence of useful plants and before the emergence of weeds. Specific spraying methods such as spraying on the soil surface after emergence and before weeds emerge, or spraying on the soil surface from above after emergence of useful plants and emergence of weeds are specifically mentioned. In addition, for spraying the herbicidal composition of the present invention onto a weed plant or the like to be controlled (for foliage application), it is sprayed on the weed foliage from above before emergence of useful plants and after weeds are generated, or useful Specific examples include spraying methods such as spraying over the weeds and leaves from above after emergence of the plants and generation of weeds. Preferably, it is sprayed on the soil surface before emergence of useful plants and before the emergence of weeds. After emergence of useful plants and before the emergence of weeds, it is preferably sprayed on the soil surface from above.

  In addition, when one or more compounds selected from saflufenacil and a photosynthesis inhibitor and / or one or more compounds selected from a VLCFA synthesis inhibitor are not used separately but are used separately, The application time may be simultaneous, one drug may be applied, and another drug may be applied after a certain period of time. The combination of active ingredients when used separately may be the same as in the above composition, in particular, one or more compounds selected from saflufenacil and a photosynthesis inhibitor, and 1 selected from a VLCFA synthesis inhibitor It is preferable to use a combination of two or more kinds of compounds, particularly a combination of saflufenacil and atrazine and acetochlor, saflufenacil and atrazine and dimethenamide, saflufenacil and atrazine and dimethenamide-P, and saflufenacil, atrazine and dimethenamide-P.

  The crops that can be used with the herbicidal composition of the present invention include cotton (Gossypium), soybean (Glycine), sugar beet and chard (Beta), carrot (Daucus), common bean and aoiama (Phaseolus). ), Peas (Pisum), eggplant potatoes (Solanum), flax (Linum), sweet potato morning glory (Ipomoea), broad bean nanghagi (Vicia), tobacco (Nicotiana), tomato (Lycopersicon), peanut (Arachis), rape -Chinese cabbage, cabbage, cabbage, rapeseed (Brassica), Akinonogeshi (Lactuca), cucumber melon (Cucumis), pumpkin (Cucurbita) or sunflower (Helianthus).

  The crops that can be used with the herbicidal composition of the present invention include rice (Oryza), corn hop corn (Zea), wheat (Triticum), barley (Hordeum), oat oat (oat) ) (Avena), rye (Secale), sorghum (Sorghum), millet (Panicum), sugarcane wasebana (Saccharum), pineapple (Ananas), asparagus (Asparagus), leek leek (Allium), or alfalfa (Medicago) Etc.

  In addition, “crops” in which the herbicidal composition of the present invention is used include HPPD (4-hydroxyphenylpyruvate dioxygenase enzyme) inhibitors such as isoxaflutole, ALS such as imazetapyr and thifensulfuron methyl. (Acetolactate synthase) inhibitors, EPSP (5-enolpyruvylshikimate-3-phosphate) synthase inhibitors such as glyphosate, glutamine synthase inhibitors such as glufosinate, ACCase (acetyl CoA carboxylase) such as cetoxydim Inhibitors, PPO (protoporphyrinogen oxidase) inhibitors such as flumioxazin, crops that have been given resistance to herbicides such as bromoxynil, dicamba, and 2,4-D by classical breeding methods or genetic recombination techniques Is also included.

  Clearfield (registered trademark) products include rapeseed, wheat, sunflower, and rice that are resistant to imidazolinone-based ALS-inhibiting herbicides such as imazetapil as examples of “crop” that have been given herbicide resistance by classical breeding methods Already sold by name. Similarly, there are soybeans that are resistant to sulfonylurea ALS-inhibiting herbicides such as thifensulfuron-methyl by classical breeding methods and are already sold under the trade name STS soybeans. Similarly, SR corn and the like are examples of crops to which tolerance has been imparted to acetyl CoA carboxylase inhibitors such as trione oxime and aryloxyphenoxypropionic acid herbicides by classical breeding methods.

  A crop imparted with tolerance to an ACCase (acetyl-CoA carboxylase) inhibitor is Proc. Natl. Acad. Sci. USA 87, 7175-7179 (1990). In addition, mutant acetyl CoA carboxylase resistant to ACCase (acetyl CoA carboxylase) inhibitors has been reported in Weed Science 53, 728-746 (2005). A crop resistant to an ACCase (acetyl CoA carboxylase) inhibitor can be produced by introducing a mutation associated with imparting resistance into a crop acetyl CoA carboxylase. Furthermore, a base substitution mutation-introduced nucleic acid typified by chimera plastic technology (Gura T. 1999. Repairing the Genome's Spelling Mistakes. Science 285: 316-318.) Is introduced into plant cells to produce an acetyl CoA carboxylase of the crop. By introducing site-specific amino acid substitution mutations into genes, ALS genes, etc., crops resistant to ACCase (acetyl CoA carboxylase) inhibitors, ALS (acetolactic acid synthase) inhibitors and the like can be produced.

  Examples of crops that have been given herbicide tolerance by genetic engineering techniques include glyphosate-resistant corn, soybean, cotton, rapeseed, and sugar beet varieties, such as Roundup Ready (RoundupReady (registered trademark)) and AgrisureGT. Already on sale. Similarly, there are corn, soybean, cotton, and rapeseed varieties that are resistant to glufosinate by gene recombination technology, and are already sold under trade names such as Liberty Link (registered trademark). Similarly, bromoxynyl-resistant cotton by gene recombination technology is already sold under the trade name BXN.

  The “crop” includes, for example, a crop that can synthesize selective toxins known in the genus Bacillus by using genetic recombination technology. Toxins expressed in such genetically modified crops include insecticidal proteins derived from Bacillus cereus and Bacillus popirie; Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab, Cry3A, Cry3Bb1 or Cry9C derived from Bacillus thuringiensis Insecticidal proteins such as δ-endotoxin, VIP1, VIP2, VIP3 or VIP3A; nematode-derived insecticidal proteins; toxins produced by animals such as scorpion toxins, spider toxins, bee toxins or insect-specific neurotoxins; filamentous fungal toxins; plants Lectin; Agglutinin; Protease inhibitors such as trypsin inhibitor, serine protease inhibitor, patatin, cystatin, papain inhibitor; Ribozo such as lysine, corn-RIP, abrin, ruffin, saporin, briodin Inactivated protein (RIP); steroid metabolic enzymes such as 3-hydroxysteroid oxidase, ecdysteroid-UDP-glucosyltransferase, cholesterol oxidase; ecdysone inhibitor; HMG-CoA reductase; sodium channel, calcium channel inhibitor, etc. Ion channel inhibitor; juvenile hormone esterase; diuretic hormone receptor; stilbene synthase; bibenzyl synthase; chitinase; glucanase and the like. Further, as toxins expressed in such genetically modified plants, Cry1Ab, Cry1Ac, Cry1F, Cry1Fa2, Cry2Ab, Cry3A, Cry3Bb1, Cry9C, Cry34Ab or Cry35Ab or other δ-endotoxin proteins, VIP1, VIP2, VIP3 or VIP3A, etc. Also included are insecticidal protein hybrid toxins, partially defective toxins, and modified toxins. Hybrid toxins are produced by new combinations of different domains of these proteins using recombinant techniques. As a toxin lacking a part, Cry1Ab lacking a part of the amino acid sequence is known. In the modified toxin, one or more amino acids of the natural toxin are substituted. Examples of these toxins and recombinant crops capable of synthesizing these toxins are EP-A-0 374 753, WO 93/07278, WO 95/34656, EP-A-0 427 529, EP-A-451 878. , WO 03/052073, and the like. Toxins contained in these recombinant crops particularly confer resistance to Coleoptera, Hemiptera pests, Diptera pests, Lepidoptera pests and nematodes.

  In addition, genetically modified crops containing one or more insecticidal pest resistance genes and expressing one or more toxins are already known and some are commercially available. Examples of these genetically modified crops include Yield Gard (registered trademark) (a corn variety expressing Cry1Ab toxin), YieldGard Rootworm (registered trademark) (a corn variety expressing Cry3Bb1 toxin), YieldGard Plus (registered trademark) (Cry1Ab and Corn varieties expressing Cry3Bb1 toxin), Herculex I® (corn varieties expressing phosphinotricin N-acetyltransferase (PAT) to confer resistance to Cry1Fa2 toxin and glufosinate), Nucotn33B® (Cotton variety expressing Cry1Ac toxin), Bollgard I (registered trademark) (cotton variety expressing Cry1Ac toxin), Bollgard II (registered trademark) (cotton variety expressing Cry1Ac and Cry2Ab toxin), VIPCOT (registered trademark) (While expressing VIP toxin Varieties), NewLeaf (registered trademark) (potato varieties expressing Cry3A toxin), NatureGard (registered trademark) Agrisure (registered trademark) GT Advantage (GA21 glyphosate resistant trait), Agrisure (registered trademark) CB Advantage (Bt11 corn borer (CB) ) Traits), Protecta (registered trademark) and the like.

  The above “crop” also includes crops to which useful traits such as oil component modification and amino acid content enhancing traits have been imparted using genetic recombination techniques. Examples include VISTIVE (registered trademark) (low linolenic soybean with reduced linolenic content) or high-lysine (high-oil) corn (corn with increased lysine or oil content).

  In addition, the above-mentioned classic herbicide tolerance traits or herbicide tolerance genes, insecticidal insect pest resistance genes, antipathogenic substance production genes, useful traits such as oil component modification and amino acid content enhancement traits Multiple types of stacks are also included. The herbicidal composition of the present invention can also be used for such crops.

  In addition, the herbicidal composition of the present invention can be used, for example, as a herbicide for general weeds, for example, cutting traces, fallow fields, ridges, farm roads, waterways, grassland, cemeteries, parks, roads, It can also be used for extermination of general weeds such as playgrounds, vacant lots around buildings, open land, track ends or forests. In this case, it is economically most effective to carry out the treatment before the beginning of weed generation, but it is not necessarily limited to this, and it is possible to control weeds in the growing season.

  On the other hand, when the herbicidal composition of the present invention is used by further mixing with other weed control agents, enhancement of the weed control effect may be observed. Furthermore, in the combination range of the drugs that do not interfere with the above effects, they can be used in combination or in combination with insecticides, acaricides, nematicides, fungicides, plant growth regulators, fertilizers, soil conditioners and the like.

As specific examples of other weed control agents, for example,
1-naphthylacetamide, 2,4-PA, 2,3,6-TBA, 2,4,5-T, 2,4,5-TB, 2,4-D, 2, 4-DB, 2,4-DEB, 2,4-DEP, 3,4-DA, 3,4-DB, 3,4-DP, 4-CPA (4-chlorophenoxyacetic acid), 4-CPB, 4- CPP, DSMA, MCP, MCPA, MCPA-thioethyl, MCPB, MSMA, ioxynil, acronifen, azafenidin, acifluorfen, adiprotryne, aziprotryne (Azimsulfuron), asuram, atraton, anisuron, anilofos, abiglycine, abscisic acid, amicarbazone, amidosulfuron, amitrol ( amitrole), aminocyclopyrachlor (Aminocyclopyrachlor), aminopyralid, amibuzin,

Amiprophos-methyl, ametridione, allidochlor, alloxydim, alorac, iofensulfuron, isouron, isocarbamid, isoxadi Isoxachlortole, isoxapyrifop, isoxaflutole, isoxaben, isoxaben, isocil, isnoruron, isoproturon, isopropalin, isopolynate (isopropalin) isopolinate), isomethiozin, inabenfide, ipazine, ipfencarbazone, iprymidam, imazaquin, imazapic, imazapyr, imazapyr, imazapyr Imazamethapyr, imazamethabenz, imazamethabenz-methyl, imazamox, imazalil, imazethapyr, imazosulfuron, indofuram, indofuram, indofuram , Indolebutyric acid, uniconazole-P (uniconazole-P), eglinazine, esprocarb, ethametsulfuron, ethametsulfuron-methyl, ethalluralin , Etiolate, ethychlozate ethyl, ethidimuron, etinofen, ethephon, ethoxysulfuron,

Ethoxyfen, ethnipromid, etofumesate, etobenzanid, epronaz, erbon, endothal, oxadiazon, oxadiargyl, oxasulfuron (Oxasulfuron), oxapyrazon, oxyfluorfen, oryzalin, orthosulfamuron, orbencarb, cafenstrole, cambendichlor, carbasulam, Carfentrazone, carfentrazone-ethyl, karbutilate, carbetamide, carboxazole, quizalofop, Zalohop-P (quizalofop-P), quizalofop-ethyl, xylachlor, quinoclamine, quinonamid, quinclorac, quinmerac, cumyluron ), Clacyfos, cliodinate, glyphosate, glufosinate, glufosinate-P, credazine, clethodim, cloxyfonac, cloxyfonac, cloxyfonac clodinafop), clodinafop-propargyl, clopyralid, cloproxydim, cloprop, clofop, clomazone, clomethoxynil, clomethoxyphen ( chlomethoxyfen), Chromeplot (Clomeprop), chlorazifop, chlorazine, chloranocryl, chloramben, chloramsulam, chloransulam-methyl, chloridazon, chlorimuron, chlorimuron Chlorimuron-ethyl,

Chlorsulfuron, chlorthal, chlorthiamid, chlortoluron, chlornitrofen, chlorpyrifos, chlorfenac, chlorfenprop, chlorbufam chlorbufam ), Chlorflurazole, chlorflurenol, chlorprocarb, chlorpropham, chlorbromuron, chlormequat, chloreturon, chloroxynil ), Chloroxuron, chlorotoluron, chloropon, cyanatryn, di-allate, diuron, diethamquat, dicamba (Dicamba), cycluron, cycloate, cyclooxydim, diclosulam, cyclosulfamuron, cyclopyrimorate, dichlorprop, dicloprop-P (Dichlorprop-P), diclobenil, diclofop, diclofop-methyl, dichlormate, dichloralurea, diquat, cisanilide, disul , Siduron, dithiopyr, dinitramine, cinidon-ethyl, dinosam, cinosulfuron, dinoseb, dinoterb, dinofenate, dinofenate dinoprop), Shiha Cyhalofop-butyl, diphenamid, difenoxuron,

Difenopenten, difenzoquat, cybutryne, cyprazine, cyprazole, diflufenican, diflufenzopyr, dipropetryn, cypromide Cyperquat, gibberellin, dimidazon, dimexano, simeton, dimepiperate, dimefuron, cinmethylin, swep, sulglycapin Sulcotrione, sulfallate, sulfentrazone, sulfosulfuron, sulfometuron, sulfometuron-methyl, secbumeton ), Sethoxydim, sebuthylazine, terbacil, daimuron, dazomet, dalapon, thiazafluron, thiazopyr, thiaenapyr, thiofenacil ), Thiencarbazone-methyl, thiocarbazil, tioclorim, thiobencarb, thidiazimin, thidiazuron, thifensulfuron, thifensulfuron methyl -methyl), desmedipham, tetrafluron, tebutam, tebuthiuron, tepraloxydim

Tefuryltrione, tembotrione, delachlor, terbacil, terbucarb, terbucarb, terbuchlor, topramezone, tralkoxydim, triaziflam, triaziflam, triaziflam (Triasulfuron), triafamone, tri-allate, tricamba, triclopyr, tridiphane, tritac, tritosulfuron, triflusulfuron , Triflusulfuron-methyl, trifluralin, trifloxysulfuron, trifloxysulfuron-sodium, tripropindan, tripropindan Tribenuron, tribenuron-methyl, trihopop, trifopsime, trimeturon, naptalam, naproanilide, napropamide, napropamide-M (napropamide-M) , Nicosulfuron, nitralin, nitrofen, nitrofluorfen, nipyraclofen, neburon, norflurazon,

Noruron, barban, paclobutrazol, paraquat, parafluron, haloxydine, halauxifen, haloxyfop, haloxyfop-P ), Halooxyfop-methyl, halosafen, halosulfuron, halosulfuron-methyl, bialafos, picloram, picolinafen, bicyclopyrone ( bicyclopyrone, bispyribac, sodium bispyribac-sodium, pydanon, pinoxaden, bifenox, piperophos, hymexazol, pyraclonil, pyrasulfone Thor (py rasulfotole, pyrazoxifene, pyrazosulfuron, pyrazosulfuron-ethyl, pyrazolate, pyranafos, saflufena-ethyl, pyrichlor, pyrifolol, rid Pyrithiobac, pyrithiobac-sodium, pyridate, pyrifalid, pyributicarb, pyribenzoxim, pyrimisulfan, pyrimisulfuron, primisulfuron,

Pyriminobac-methyl, pyroxasulfone, pyroxsulam, phenasulam, phenisopham, fenuron, fenoxasulfone, fenoxaprop , Phenoxaprop-P, fenoxaprop-ethyl, fenquinotrione, phenothiol, phenoprop, fenopropuron, phenobenzuron, fenthia Prop (fenthiaprop), fenteracol (fenteracol), fentrazamide (fentrazamide), phenmedipham (phenmedipham-ethyl), butafenacyl (butafenacil), butamifos (butamiurs), buthiuron (buthiuron), butydazole ( b uthidazole), butyrate, buturon, butenachlor, butroxydim, butralin, butroxydim, flazasulfuron, flamprop, fleapropoxy (Furyloxyfen), prynachlor,

Primisulfuron-methyl, fluazifop, fluazifop-P, fluazifop-butyl, fluazolate, fluothiuron, fluometuron, fluoro Glycoglycofen, fluorochloridone, fluorodifen, fluoronitrofen, fluoromidine, flucarbazone, flucarbazone-sodium, fluchloralin ), Flucetosulfuron, fluthiacet, fluthiacet-methyl, flupyrsulfuron, flufenacet, flufenican, flufenpyr (flu) fenpyr), flupropacil, flupropanate, flupoxam, flumioxazin, flumioxazin, flumiclorac, flumiclorac-pentyl, flumipropyn, flumedin flumezin, flumetsulam, fluridone, flurtamone, flurprimidol, fluroxypyr, proxan, proglinazine, propyazine, prodiamine , Prosulfalin, prosulfuron, prosulfocarb,

Propakiza hop (propaquizafop), propanil (propanil), propyzamide (propyzamide), prohydrojasmon (prohydrojasmon), propyrisulfuron (propyrisulfuron), propham (propham), profluazol (profluazol), proflularin (profluralin), prohexaline Prohexadione-calcium, propoxycarbazone, propoxycarbazone-sodium, propoxydim, bromacil, brompyrazon, brompyrazon, bromoxynil, bromofenoxim ), Bromobutide, bromobonil, florasulam, hexachloroacetone, hexaazinone, benazolin, penoxsulam Peburato (pebulate), Befurubutamido (beflubutamid), Verno rate (vernolate), Perufuruidon (perfluidone), Benkarubazon (bencarbazone),

Benzadox, benzipram, benzylaminopurine, benzthiazuron, benzfendizone, benzsulide, bensulfuron-methyl, benzoylprop , Benzobicyclon, benzofenap, benzofluor, bentazone, pentanochlor, benthiocarb, pendimethalin, pentoxazone , Benfluralin, benfuresate, fosamine, fomesafen, foramsulfuron, forchlorfenuron, maleic hydrazide, mecopro Mecoprop, mecoprop-P, mezinoterb, mesosulfuron, mesosulfuron-methyl, mesotrione, mesoprone, mesoprotryne, metazoprotryne methazole),

Metazosulfuron, metabenzthiazuron, metamitron, metamifop, metam, metapropalin, methiuron, methiozolin, methiocarbin ), Methyldymron, metoxuron, metsusulam, metsulfuron, metsulfuron, metsusulfuron-methyl, metflurazon, metrobroron, metonuron, metonton ), Metribuzin, mepiquat-chloride, mefenacet, mefluidide, monalide, monisouron, monuron, monochloro vinegar (Monochloroacetic acid), monosulfuron, monosulfuron-ester, monolinuron, molinate, morfamquat, iodosulfuron, iodosulfuron methyl sodium (iodosulfuron) -methyl-sodium), iodobonil, iodomethane, lactofen, linuron, rimsulfuron, lenacil, rhodethanil, calcium peroxide and Examples thereof include methyl bromide.

The above compounds are listed in the Farm Chemicals Handbook (Meister Publishing Company) (1995 edition catalog, Agchem Compound Review) (Achchem Information Service). [AG CHEM NEW COMPOUND REVIEW, VOL. 13, 1995 (AG CHEM INFORMATION SERVICE)], Achchem New Compound Review-1997 Edition (Agchem Information Service) [AG CHEM NEW COMPOUND REVIEW, VOL. 15, 1997 (AG CHEM INFORMATION SERVICE)], Agchem New Compound Review 1998 edition (Agchem Information Service) [AG CHEM NEW COMPOUND REVIEW, VOL. 16, 1998 (AG CHEM INFORMATION SERVICE)], Agro no. 296, page 22 (AGROW No. 296 p22), Agro no. 297, page 21 (AGROW No. 297 p21), Agro No. 308 page 22 (AGROW No. 308 p22), Agro No. 308 324, pages 26 to 27 (AGROW No. 324 pp26-27) or “Herbicide Research Guide (Hakutosha)”.

  The weeds that can be controlled by the herbicidal composition of the present invention include, as genus of dicotyledonous weeds, morning glory (Ipomoea), azena (Lindernia), American horned sanem (Sesbania), ichibi (Abutilon), dog chamomile (Matricaria), dog garashi ( Rorippa), nettle (Urtica), nettle (Lamium), red fir tree (Xanthium), mustard (Sinapis), red stag beetle (Rotala) stag beetle (Veronica), poppy (Papaver), white crab (Chenopodium), white clover ), Surihiyu Matsuba Button (Portulaca), Violet Pansy (Viola), Aruba morning glory (Pharbitis), Chishima Odoro (Galeopsis), Datura, Eggplant potato (Solanum), Nazuna (Capsella), Noizami Fusami (Cirsium) ), Sonchus, Galinsoga, Stellaria, Scorpio, Senecio, Amaranthus, Ambrosia, Kochia, Lamium, Legipidium, Polygonum, Gaem Examples include cornflower (Centaurea) and mugwort (Artemisia).

  Examples of monocotyledonous weeds include Leptochloa, Awagaeri, Timothy (Phleum), Strawberry Swallow, Suzumenokatabira (Poa), Ushikokesa Toboshigara (Festuca), Enokorawa (Setaria), Ohishiba Shikokubie (Eleus) Omodaka Kwai (Sagittaria), Duckweed (Agropyron), Platypus (Ischaemum), Cyperus Papyrus schitoui hamasuge (Cyperus), Oats, Oat (Avena), Vineyards (Bromu), Bromu Cynodon, Monochoria, Alopecurus, Paspalum, Commelina, Fimbristylis, Lolium, Brachiaria, charisto, Agrostis ), Echinochloa, Jota Lee Ukiyagura-thick (Scirpus), crabgrass (Digitaria), sorghum (Sorghum) and the like.

  Specific examples of weeds include Amaranthus retroflexus, Amaranthus viridis, Seto faberi, Leptochloa chinensis, Lindernia angustifolia, Lindernia procumea, Lindernia procumea American Azena (Lindernia dubia), American King Deer (Sida spinosa), American Sanadeta (Polygonum pensylvanicum), American horned foxtail (Sesbania exaltata), American stag beetle (Geranium carolinense), Arechinogiku (Conyza bonariensis), igahopoyu well (Amaranth powell) (Polygonum cuspidatum), Ichibibi (Abutilon theophrasti), Matricaria perforata, Intagade (Polygonum longisetum), Invier (Echinochloa crus-galli), Amaranthus lividus, Solanum nigrum, Solanum nigrum Chajiki (Bromus tectorum), Urikawa (Sagittaria pygmaea Miq), Ezonogi Shigishi (Rumex obtusifolius), Enocorogusa (Setaria viridis), Ebisugusa (Cassia obtusifolia), Oolechinogiku (Conyza sumatrensis) (Panicum dichotomiflorum), Mongolia (Asclepias syriaca), Paramecium (Euphorbia maculata), Psyllium (Plantago asiatica), Amaranthus palmeri, Amananthus (Xanthium struaster) indica), Sagittaria trifolia, Erodium cicutarium, Cerastium glomeratum, Matricaria matricarioides, Camellia (Matricaria chamomilla), Vicia angustifo (Vicia angustifo) lia), crow sprout (Bromus secalinus), oats (Avena fatua), scallops (Rotala indica Koehne), scallops (Rumex japonicus), yellow squirrel (Cyperus esculentus), golden crocodile (Setaria glauca), kuzu (Pueraria lob) Ohwi), Ambrosia trifida, corn marigold (Chrysanthemum segetum), cyperus iria, cricket (Monochoria vaginalis), kochimebi (Echinochloa colona), scorpionfish (Alisma plantago-aquatica), moss Sanaetade (Polygonum lapathifolium),

Agropyron repens, Sorghum vulgare, Silka bentgrass (Apera spica-venti), Shiroza (Chenopodium album), White clover (Trifolium repens), Shirahuma (Datura stramonium), Sugina (Equisetum) , Poa annua, Bromus japonicus, Alopecurus aequalis, Portulaca oleracea, Solidago altissima, Sorghum, cepen Taraxacum officinale, Convolvulus arvensis, Seri (Oenanthe javanica), Buckwheat (Polygonum convolvulus), Echinochloa oryzicola Vasing, Ischaemum rugosum, Tachiinu venu sis, Veronica Cyperus difformis L., Amaranthus rudis, Ludwigia prostrata Roxburgh, Commelina communis, Texas cumnicus, Euphorris hep Nazuna (Capsella bursa-pastoris), euperbia pseudochamaesyce, acne (Brachiaria plantaginea), rotifer (Lolium multiflorum), hornbill (Alopecurus myosuroides), hornbill (Sinapis ellavenga), stinkweed (Stinapis ellavenga) , Cyperus rotundus, Amaranthus spinosus, Polygonum persicaria, Papaver rhoeas, Sunflower (Helianthus annuus), Lamium purpureum, Mani mumli iflora, Conyza canadensis, Potamogeton distinctus A. Benn, Amaranthus tuberculatus, Viola arvensis, Ambrosia artemisiifolia, Lola myria folia, Veronica hees ), Florida Vega Weed (Desmodium tortuosum), Plantago lanceolata, Heramodaka (Alisma canaliculatum A. Br.et Bouche), Kochia scoparia, Lolium rigidum, Hosobahimemiso cocca , Barley (Lolium perenne), firefly (Scirpus juncoides Roxburgh), red beetle (Lamium amplexicaule), stag beetle (Amaranthus hybridus), pine beetle (Eleocharis acicularis L.), bean moth (Ipomoea lacunosa pura) , Malva America Asaga (Ipomoea hederacea var integriuscula), Marmela bengharensis, Monochoria korsakowii, Cyperus serotinus Rottboel, Elatine triandra Schk, Digitaria cilia (Digitaria cilia) bicolor), yamgra (Galium aparine), mugwort (Artemisia princeps), wild pansy (Viola tricolor), wild radish (Raphanus raphanistrum), forget-me-not (Myosotis arvensis), hera moda (Alisma canaliculatum), cyperus flaccid (Cyperus fl) It is done. In particular, grass species that are considered to be less effective for saflufenacyl, VLCFA (very long chain fatty acid) synthesis inhibitors such as acetochlor, and photosynthesis (photosystem II) inhibitors such as atrazine are less effective. It is highly effective against sparrows (Poa annua) and wheat (Lolium multiflorum).

When the herbicidal composition of the present invention is used as a herbicide, the compounding ratio, amount used, mixing ratio, formulation method, etc. of the compound as an active ingredient are set in the same manner as the range disclosed in the herbicidal composition. Can be used.

However, the composition of the present invention does not have to be used only in such an embodiment, and can also be used as a herbicide for general weeds, such as cut traces, fallow fields, ridges, farm roads, waterways, It can also be used to control general weeds such as grassland, cemeteries, parks, roads, playgrounds, vacant lots around buildings, clearing lands, track ends or forests. In this case, it is economically most effective to carry out the treatment before the beginning of weed generation, but it is not necessarily limited to this, and it is possible to control weeds in the growing season.

Hereinafter, the present invention will be described more specifically by preparation examples and test examples of the present invention, but the present invention is not limited to the following examples as long as the gist thereof is not exceeded. In the following examples, the following compounds are used as the components of the herbicidal composition of the present invention.
(A) Photosynthesis inhibitors such as saflufenacyl (B) atrazine (C) VLCFA synthesis inhibitors such as acetochlor

In the following formulation examples, “part” means “part by weight”.
Formulation Example 1
(A) 2.05 parts (B) 5.40 parts (C) 10.05 parts Kaolin, synthetic highly dispersed silicic acid 72.50 parts Mixture of polyoxyethylene nonylphenyl ether and calcium alkylbenzenesulfonate 10.00 parts or more Is uniformly mixed and ground to obtain a wettable powder.

Formulation Example 2
(A) 1.02 parts (B) 6.55 parts (C) 8.25 parts LUNOX 1000C (trade name, manufactured by Toho Chemical Industries) 5.00 parts Carplex # 80D (trade name, manufactured by Evonik Japan) 3 0.000 parts Ethylene glycol 8.00 parts Water 48.18 parts The above mixture was mixed and dispersed, and the resulting slurry mixture was wet-ground with a dyno mill (trade name, WAB), and then mixed and dissolved in advance. Add 20 parts of 1% aqueous solution and mix uniformly to make an aqueous suspension (flowable agent).

Formulation Example 3
(A) 4.08 parts (B) 5.40 parts (C) 10.05 parts Solpol 3105 (trade name, manufactured by Toho Chemical Industries) 5.00 parts Propylene glycol 5.00 parts Rhodopol 23 (trade name, Solvay Date) 0.22 part water 70.25 part The above is uniformly mixed and dispersed in water to obtain an aqueous suspension (flowable agent).

Formulation Example 4
(A) 3.09 parts (B) 6.55 parts (C) 8.25 parts Calcium lignin sulfonate 5.00 parts Sodium lauryl sulfate 3.00 parts Xanthan gum 0.20 parts White carbon 4.80 parts Water 69. 11 parts or more are mixed and wet pulverized to obtain an aqueous suspension (flowable agent).

Formulation Example 5
(A) 5.05 parts (B) 5.40 parts (C) 10.05 parts Polyethylene glycol dialkyl aryl ether sulfate 5.00 parts calcium lignin sulfonate 10.00 parts Diatomaceous earth 64.50 parts or more After mixing and pulverizing, a small amount of water is added and mixed and kneaded, granulated with an extrusion granulator, and dried to obtain a granulated wettable powder.

  Next, test examples of the composition of the present invention will be shown. In the following test examples, by using (A) and (B) and / or (C) in combination, the effect (synergistic effect) exceeding the effect expected from the effect when each is used alone is shown. It was. A synergistic effect is an effect when two or more drugs act simultaneously, and the effect is greater than expected from the activity of each alone.

The activity expected by a specific combination of two herbicides (referred to as “expected value”) is the following Colby formula (see Colby, SR, Weeds, 15, p. 20-22 (1967)): Can be calculated from
[Equation 1]
E1 = (α + β) − (αβ) / 100
However, in the formula,
α = herbicidal effect when herbicide X is treated in an amount of xg / ha,
β = herbicidal effect when herbicide Y is treated in an amount of yg / ha,
E1 = herbicidal effect expected when herbicide X is treated with xg / ha and herbicide Y is treated with yg / ha.

Similarly, when three kinds of active ingredients are combined, they can be calculated as follows.
[Equation 2]
E2 = (α + β + γ) − (αβ + αγ + βγ) / 100 + (αβγ) / 10000
However, in the formula,
α = herbicidal effect when herbicide X is treated in an amount of xg / ha,
β = herbicidal effect when herbicide Y is treated in an amount of yg / ha,
γ = herbicidal effect when herbicide Z is treated in the amount of zg / ha
E2 = Herbicidal effect expected when herbicide X is treated with xg / ha, herbicide Y with yg / ha and herbicide Z with zg / ha.

That is, it can be said that when the actual herbicidal effect (actually measured value) is larger than the herbicidal effect (calculated value) by the above calculation, the activity by the combination shows a synergistic action.
The herbicidal composition of the present invention exhibits a synergistic effect when calculated by the above formula.

The herbicidal effect in the pot test was evaluated according to the following criteria in comparison with the untreated group.
As a criterion for herbicidal effect, the degree of herbicidal effect was evaluated from 0 (no effect) to 100% (complete withering).

As each drug, a preparation according to the preparation example or a commercially available product in Japan and abroad was used. Single agent of saflufenacil is commercially available saflufenacil: flowable formulation SHARPEN ™, granule wettable powder Treevix ™ (indicated in the table as "saflufenacil"), etc. Formulation or commercially available flowable formulation Gezaplim Flowable (SC) or wettable powder Atrazina (in the table, indicated as “Atrazine”) and the like, and acetochlor single agent as commercially available emulsion Harness (in the table, “Acetochlor”) In the table, dimethenamid-P single agent is a commercially available emulsion field star emulsion (indicated in the table as “dimethenamid-P”), etc., and S-metolachlor single agent is a commercially available emulsion sibatch emulsion (in the table). Used “S-metolachlor”). Evaluation of mixed use of saflufenacil, atrazine, and acetochlor was performed using a mixture of commercially available single agents.
Saflufenacil and atrazine, saflufenacil and acetochlor, saflufenacil and atrazine and acetochlor, saflufenacil and dimethenamide-P, saflufenacil and dimethenamide-P and atrazine, saflufenacil and S-metolachlor, saflufenacil and S-metolachlor and atrazine These single agents were mixed and used.

Test Example 1 Field for soil wheat (Italian ryegrass) Soil treatment test A resin pot with an area of 63.5 cm ² was filled with a sandy sandy loam soil, and seeds of wheat ryegrass were uniformly sown and covered uniformly. On the next day after sowing, each herbicide diluted or diluted / mixed to a predetermined concentration was uniformly sprayed on the soil. As a single agent of each active ingredient, a commercially available agent or a preparation according to a preparation example was used. Further, they were mixed to prepare a mixed treatment chemical solution.

  The pot after the herbicide treatment continued cultivation management outdoors, the herbicidal effect was evaluated 22 days after the treatment, and the expected value was calculated according to Equation 1 and Equation 2. The results are shown in Table 1. In the table, DAA represents the number of days after processing, and E1 and E2 represent the expected values at the time of 2 mixing and 3 mixing, respectively. (The following table is the same.)

  As is apparent from Table 1, when saflufenacil, acetochlor and atrazine were treated with a single agent, the doses used in the test did not show sufficient effects on rat wheat, but saflufenacil and acetochlor or saflufenacil. And atrazine combined treatment, a synergistic effect exceeding the expected value (E1) was observed, and further, the combined treatment with saflufenacil, acetochlor, and atrazine was more dramatic than the expected value (E2). It was confirmed that an excellent herbicidal effect was exhibited.

  As is apparent from Table 2, when saflufenacil, S-metolachlor and atrazine were treated with a single agent, the doses used in the test did not show sufficient effects on rat wheat, but saflufenacil and S-metola. A synergistic effect exceeding the expected value (E1) is recognized by the combined treatment with chlor, or saflufenacil and atrazine, and further, the expected value (3) with the combined treatment of saflufenacil, S-metolachlor and atrazine. E2) It was confirmed that the herbicidal effect was dramatically improved.

  As is apparent from Table 3, when saflufenacyl, dimethenamide-P and atrazine were treated with a single agent, the doses used in the test did not show sufficient effects on rat wheat, but saflufenacyl and dimethenamide-P and It was confirmed that the herbicidal effect drastically superior to the expected value (E2) was exhibited by the combined treatment with 3 mixtures of atrazine.

  The herbicidal composition of the present invention has a broad herbicidal spectrum with respect to various weeds compared to single agent application, and exhibits an excellent control effect at a low dosage, thus reducing the number of herbicide application times, etc. This is useful because it has less impact on the global environment.

Claims (19)

A herbicidal composition comprising saflufenacyl and one or more compounds selected from a VLCFA (very long chain fatty acid) synthesis inhibitor and / or a photosynthesis (photosystem II) inhibitor as active ingredients . The herbicidal composition according to claim 1, comprising saflufenacil and one or more compounds selected from VLCFA (very long chain fatty acid) synthesis inhibitors as active ingredients. The herbicidal composition according to claim 1, comprising saflufenacil and one or more compounds selected from photosynthesis (photosystem II) inhibitors as active ingredients. It contains saflufenacyl, one or more compounds selected from VLCFA (very long chain fatty acid) synthesis inhibitors, and one or more compounds selected from photosynthesis inhibitors as active ingredients, The herbicidal composition according to claim 1. 1 to 1000 parts by mass of one or more compounds selected from a VLCFA (very long chain fatty acid) synthesis inhibitor or a photosynthesis (photochemical system II) inhibitor with respect to 1 part by mass of saflufenacil, The herbicidal composition according to claims 1 to 3. 1 part by mass of 1 or more kinds of compounds selected from photosynthesis (photochemical system II) inhibitors and 1 type selected from VLCFA (very long chain fatty acid) synthesis inhibitors with respect to 1 part by mass of saflufenacil The herbicidal composition according to claim 1 or 4, comprising 1 to 1000 parts by mass of the above compound. The photosynthesis (photosystem II) inhibitor is amethrin, atrazine, cyanazine, desmethrin, dimetamethrin, promethone, promethrin, propazine, CAT (simazine), cimetrine, terbumethone, terbutyrazine, terbutrin and trietadine. The herbicidal composition according to any one of the above. The herbicidal composition according to any one of claims 1, 3, and 6, wherein the photosynthesis (photosystem II) inhibitor is atrazine. VLCFA (very long chain fatty acid) synthesis inhibitors are acetochlor, alachlor, butachlor, dimethachlor, dimethenamide, metazachlor, metolachlor, S-metolachlor, petoxamide, dimethenamide-P, pretilachlor, propachlor, propisochlor, or tenylchlor The herbicidal composition according to any one of claims 1, 2, 4 and 6. The herbicidal composition according to any one of claims 1, 2, 4, and 6, wherein the VLCFA (very long chain fatty acid) synthesis inhibitor is acetochlor, S-metolachlor, dimethenamide, and dimethenamide-P. . The photosynthesis (photosystem II) inhibitor is atrazine, and the VLCFA (very long chain fatty acid) synthesis inhibitor is acetochlor, dimethenamide, dimethenamide-P, and S-metolachlor. The herbicidal composition according to item 1. A method for using a herbicidal composition, comprising subjecting an effective amount of the herbicidal composition according to any one of claims 1 to 11 to soil treatment or foliage treatment on non-agricultural land or agricultural land. A method for using a herbicidal composition according to any one of claims 1 to 11, wherein an effective amount of the herbicidal composition according to any one of claims 1 to 11 is treated on non-agricultural land or agricultural land before weeds are generated. It is characterized by applying saflufenacil and one or more compounds selected from a VLCFA (very long chain fatty acid) synthesis inhibitor and / or a photosynthesis (photochemical system II) inhibitor simultaneously or with a time difference A method for controlling weeds in farmland or farmland. The weed control method according to claim 14, wherein the photosynthesis (photosystem II) inhibitor is atrazine, and the VLCFA (very long chain fatty acid) synthesis inhibitor is acetochlor, dimethenamide, dimethenamide-P, and S-metolachlor. . The weed control method according to claim 14 or 15, wherein the control weeds are Gramineae. The weed control method according to claim 14 or 15, wherein the weeds to be controlled are Gramineae genus Poaceae or Gramineae. The weed control method according to claim 14 or 15, wherein the weeds to be controlled are rat ryegrass. The weed control method according to claim 14 or 15, wherein the weeds to be controlled are Poa annua.