JPH11199415A - Herbicide composition for non-crop land - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a herbicide composition capable of selectively controlling a wide range of weeds in non-crop lands with broad herbicidal spectrum, and capable of markedly suppressing the following year's weed growth, by including specific two kinds of compound as active ingredients. SOLUTION: This herbicide composition is obtained by including, as active ingredients, (A) N<1> -methoxycarbonylsulfanylamide sodium of formula I (general name: asulam) and (B) pref. 0.001-100 (more pref. 0.01-10) pts.wt., per pt.wt. of the ingredient A, of trimethylsulfonium = N-(phosphonomethyl) glycinate (general name: glyphosate trimesium salt). When this composition is to be used as a herbicide, the above two ingredients are mixed with a solid or liquid support or diluent, surfactant, and other auxiliary(ies) for preparations and prepared in the form of ordinary preparation used as an agrochemical, for example, granules, liquid, emulsion, wettable powder, floable agent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a herbicidal composition, and more particularly, to the control of the occurrence of a wide variety of annual and perennial field weeds and non-agricultural land weeds in non-agricultural lands, etc. in the following year. The present invention relates to a herbicide composition for non-agricultural land, which exhibits a high herbicidal effect.

[0002]

2. Description of the Prior Art Many herbicides have been put to practical use for non-agricultural land, and they have been widely and generally used as single agents or as mixtures containing two or more active ingredients. However, these agents are generally effective on annual weeds, but lack effect on perennial weeds. On the other hand, those that are relatively effective against perennial weeds often have problems such as insufficient effect on annual weeds and / or lack of sustained herbicidal effect. It is widely practiced to mix two or more herbicides with different effects to broaden the herbicidal spectrum and to enhance the herbicidal effect, but generally the additive effect of the mixture is additive. It tends to remain within the range and the effect persistence is not maintained.

[0003]

With respect to non-agricultural weeds, it is desired to develop a herbicide which has a high effect on a wide variety of weeds from annual to perennial weeds and has a long-term residual effect. ing.

[0004]

Means for Solving the Problems The present inventors have conducted various studies to develop a herbicide for non-agricultural land that satisfies the above-mentioned needs of herbicide users. As a result, it is possible to selectively control a wide range of weeds in non-agricultural lands by combining several compounds having different weed killing mechanisms and herbicidal spectrums, preferably in a specific ratio, and the herbicidal effect is to use them alone. It has been found that the herbicidal composition of the present invention has been found to increase synergistically, expand the herbicidal spectrum, maintain the sustainability of the effect and significantly suppress the occurrence of the following year, and complete the herbicidal composition of the present invention.

That is, the present invention provides the following formula (1):

[0006]

Embedded image

Sodium N ¹ -methoxycarbonylsulfanilamide (general name: Ashram) represented by
The following equation (2):

[0008]

Embedded image

Trimethylsulfonium = N-
It is intended to provide a herbicide composition for non-agricultural land, characterized by containing, as active ingredients, two compounds consisting of (phosphonomethyl) glycinate (generic name: glyphosate trimesium salt).

[0010]

DETAILED DESCRIPTION OF THE INVENTION Ashlam used as an active ingredient of the composition of the present invention is disclosed in Japanese Patent Application Publication No. 41-17878.
Glyphosate trimesium salt (also known as sulfosate) is a known herbicide described in Patent Application Publication No. 63-20437.

In the composition of the present invention, the mixing ratio of the ashram and the glyphosate trimesium salt is not strictly limited, and may vary over a wide range depending on the application region, application weed, application time, etc. of the final herbicide composition. In general, it is suitable to add glyphosate trimesium salt in an amount of 0.001 to 100 parts by weight, preferably 0.01 to 10 parts by weight, per 1 part by weight of the ashram.

When the composition of the present invention is actually used as a herbicide, the above active ingredient is mixed with a solid or liquid carrier or diluent known per se, a surfactant, and other pharmaceutical auxiliaries to form a pesticide. The preparation can be prepared in the usual preparation form to be used, for example, granules, solutions, emulsions, wettable powders, flowables, dry flowables, wettable powders and the like.

Solid carriers usable in the production of herbicides include clays typified by kaolinites, montmorillonites, illites and polyglossites, more specifically pyrophyllite, attapulgite, sepiolite, kaolinite, bentonite. , Saponite, vermiculite, mica, talc, etc., and plaster,
Calcium carbonate, dolomite, diatomaceous earth, calcite, magnesium lime, apatite, zeolite, silica,
Inorganic substances such as synthetic calcium silicate; soybean flour, tobacco flour, walnut flour, flour, wood flour, starch, crystalline cellulose and other plant organic substances; coumarone resin, petroleum resin, alkyd resin, polyvinyl chloride, polyalkylene glycol And synthetic or natural polymer compounds such as ketone resin, ester gum, copal gum and dammar gum; waxes such as carnauba wax and beeswax; and urea.

Suitable liquid carriers include, for example, paraffinic or naphthenic hydrocarbons such as kerosene, mineral oil, spindle oil and white oil; aromatic hydrocarbons such as xylene, ethylbenzene, cumene and methylnaphthalene; trichloroethylene, monochlorobenzene Chlorinated hydrocarbons such as o-chlorotoluene; ethers such as dioxane and tetrahydrofuran; ketones such as methyl ethyl ketone, diisobutyl ketone, cyclohexanone, acetophenone and isophorone; ethyl acetate, amyl acetate, ethylene glycol acetate, diethylene glycol acetate, and maleic Esters such as dibutyl acrylate and diethyl succinate; n-hexanol, ethylene glycol, diethylene glycol, cyclohexanol,
Alcohols such as benzyl alcohol; ether alcohols such as ethylene glycol ethyl ether, ethylene glycol phenyl ether, diethylene glycol ethyl ether and diethylene glycol butyl ether; polar solvents such as dimethylformamide and dimethyl sulfoxide; and water.

In addition, emulsification, dispersion, and wetting of the active ingredient
Surfactants, fixing agents and other auxiliaries can be used for the purpose of spreading, fixing, binding, controlling disintegration, stabilizing the active ingredient, improving fluidity, preventing rust, and the like. As examples of surfactants used, any of non-ionic, anionic, cationic and zwitterionic compounds can be used, but usually non-ionic and / or anionic Compounds are used. Suitable nonionic surfactants include, for example, compounds obtained by polymerizing ethylene oxide with higher alcohols such as lauryl alcohol, stearyl alcohol and oleyl alcohol; compounds obtained by polymerizing ethylene oxide with alkylphenols such as isooctylphenol and nonylphenol; butyl Compounds obtained by polymerization addition of ethylene oxide to alkyl naphthols such as naphthol and octyl naphthol; palmitic acid,
Compounds obtained by polymerizing ethylene oxide with higher fatty acids such as stearic acid and oleic acid; Compounds obtained by polymerizing ethylene oxide with amines such as dodecylamine and stearic acid; higher fatty acid esters of polyhydric alcohols such as sorbitan and ethylene oxide Compounds obtained by polymerization addition; compounds obtained by block polymerization addition of ethylene oxide and propylene oxide. Suitable anionic surfactants include, for example, alkyl sulfates such as sodium lauryl sulfate and amine salt of oleic alcohol sulfate; alkyl sulfonates such as sodium dioctyl sulfosuccinate and sodium 2-ethylhexene sulfonate; And arylsulfonic acid salts such as sodium isopropylnaphthalenesulfonate, sodium methylenebisnaphthalenesulfonate, sodium ligninsulfonate and sodium dodecylbenzenesulfonate. Furthermore, the composition of the present invention improves the performance of the preparation, and for the purpose of enhancing the herbicidal effect, casein, gelatin, albumin, glue, lignin sulfonate, alginate, acacia, xanthan gum, carboxymethylcellulose, methylcellulose, hydroxyethylcellulose , Polyvinyl alcohol, polyvinylpyrrolidone, polysaccharides and other high molecular compounds and other auxiliaries can also be used in combination.

The above-mentioned carriers and various auxiliaries can be used singly or in combination according to the purpose, taking into account the dosage form of the preparation, the application scene, and the like.

The content of the active ingredient in the composition of the present invention in the various types of preparations obtained in this way varies depending on the type of preparation, for example, 0.01 to 99% by weight, preferably 0.1% by weight. ~ 80% by weight.

In the case of wettable powders, for example, the active ingredient is usually 1
To 90% by weight, with the balance being a solid carrier and a dispersing wetting agent to which a protective colloid agent, an antifoaming agent and the like are added if necessary.

In the case of granules, for example, the active ingredient is usually 1 to
35% by weight, with the balance being a solid carrier and / or a surfactant. The active ingredient is uniformly mixed with the solid carrier, or is fixed or adsorbed uniformly on the surface of the solid carrier, and the diameter of the particles is about 0.05 to 3.0 mm, preferably about 0.2 to 1. 5 mm.

In the case of flowables, for example, the active ingredient is usually contained in an amount of 0.5 to 50% by weight, and 2 to 10% by weight.
% By weight of the dispersion wetting agent, with the balance being water, with the addition of thickeners, deicing agents, preservatives, defoamers and the like as needed.

In the case of a liquid preparation, for example, the active ingredient is usually contained in an amount of 0.1.
It contains 1 to 50% by weight, to which 0.5 to 10% by weight of a dispersing wetting agent is contained, and the balance is water, and a preservative, an antifoaming agent and the like are added as required. The appropriate amount of application of the composition of the present invention prepared as described above is meteorological condition, soil condition, pharmaceutical preparation form, target crop, target weed, time of application,
Although it cannot be specified unconditionally due to differences in application methods, etc., usually,
0.0 per hectare based on the total amount of active ingredients
A range of 1 to 1000 kg, preferably 0.1 to 100 kg is suitable. Furthermore, the composition of the present invention can be used as a labor-saving control agent by appropriately mixing other insecticides, fungicides, plant growth regulators and the like.

Further, if necessary, it can be mixed with other various insecticides, fungicides, plant growth regulators, herbicides and other drugs or fertilizers when spraying.

[0023]

EXAMPLES Next, the effects of the composition of the present invention will be specifically described with reference to test examples.

Test Example 1 (Effect of Ashram and Glyphosate Trimesium Salt on S. agaricus) A 2 m (horizontal) × 4 m (vertical) section was divided in a field without continuous application, and an average plant height of 55 cm was used. On the other hand, a commercially available drug was diluted in water equivalent to 100 L / 10a (full foliage treatment) and sprayed with a backpack type carbon dioxide gas pressure type sprayer. After 10 days, 20 days and 40 days after the chemical treatment, the time-dependent effect of S. pallidum was measured. In the next spring, the plant height and the number of S. pallidum at 3 points per section were measured (compared to the untreated section), and the residual effect was measured. It was an index of sex. Table 2 shows the results of the survey. In addition, the herbicidal effect against the grass species in the table was expressed based on a six-point scale from "0" to "5", as shown in Table 1 below. Test Example 2 (Effect on horsetail in mixed use of ashram and glyphosate trimesium salt) A 70 cm (width) x 3 m (length) section was divided in a field not subjected to consecutive application, and commercially available for horsetail having an average height of 10 to 15 cm. 100L of medicine
/ 10a (whole foliage treatment) and diluted with water equivalent to spraying with a backpack type carbon dioxide gas pressure sprayer (each,
Repeated in 7 sections. ).

After 20 days, 40 days and 60 days after the chemical treatment, the time-dependent effect of horsetail on one field (50 cm × 50 c
m) The above-ground part of the horsetail was cut off 59 days after spraying, the live weight was measured (compared to the untreated section), and this was used as an index of residual efficacy. Table 3 shows the results of the survey. In addition, the herbicidal effect against the grass species in the table was expressed based on a six-point scale from "0" to "5", as shown in Table 1 below.

[0026]

[Table 1]

[0027]

[Table 2]

[0028]

[Table 3]

[0029]

From the results of the test examples described above, the composition of the present invention has a clear effect-enhancing effect as compared with the case where each of the active ingredients is used alone. Control of each weed was confirmed at a lower dose.

That is, as is clear from the above-mentioned test examples, the composition of the present invention has an herbicidal enhancing effect exceeding the expected additive effect as compared with the use of ashram or glyphosate trimesium salt alone, and a residual effect. Sex has also increased. Also,
The time of use can be arbitrarily selected from a wide range from before weed germination to the end of weed growth, preferably from a range from the early stage of weed growth to the end of weed growth.

These excellent effects are apparently attributable to the synergistic effect of the herbicidal effect of the mixture of the ashram and glyphosate trimesium salts contained in the composition of the present invention. It is possible to provide a herbicide having a higher herbicidal effect on a growing non-cultivated land weed, and thus contributes to the agricultural field. As a result of such an excellent herbicidal effect, the amount of each herbicide can be reduced, and therefore, a herbicide composition having a small impact on the environment can be provided.

Continuation of the front page (72) Inventor Yoshi Ikeda 8-3-1 Chuo, Ami-cho, Inashiki-gun, Ibaraki Prefecture Rhone-Poulin Oil Chemicals Agro Lab. 8-3-1 Rhone-Poulin Yuka Agro Co., Ltd. Ami Lab Research Institute (72) Inventor Shigehiko Tachikawa 1-17-17 Aobadai, Kikukawa-cho, Ogasa-gun, Shizuoka Prefecture (72) Inventor Hideo Sadohara Horinouchi, Niiza-shi, Saitama 2-9-3 (72) Inventor Makoto Chichiuchi 3645 Tsuruta-cho, Utsunomiya City, Tochigi Prefecture (72) Inventor Hitoshi Kuramochi 3029-5, Higashimine, Higashimine, Utsunomiya City, Tochigi Pref.

Claims (1)

[Claims] 1. The following formula (1): With sodium N ¹ -methoxycarbonylsulfanilamide represented by the following formula (2): A herbicidal composition for non-agricultural land, comprising as active ingredients two compounds consisting of trimethylsulfonium = N- (phosphonomethyl) glycinate represented by the formula: