CN110692644A - Application of weeding composition in preventing and controlling undesirable plant germination or growth of dry-land crops - Google Patents
Application of weeding composition in preventing and controlling undesirable plant germination or growth of dry-land crops Download PDFInfo
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- CN110692644A CN110692644A CN201810753534.XA CN201810753534A CN110692644A CN 110692644 A CN110692644 A CN 110692644A CN 201810753534 A CN201810753534 A CN 201810753534A CN 110692644 A CN110692644 A CN 110692644A
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- clomazone
- flufenacet
- dry
- herbicidal composition
- germination
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
Abstract
The invention relates to the use of a herbicidal composition containing flufenacet and clomazone for controlling undesired plant germination or growth in crops of soya, potato, cotton, maize, wheat, peanut (Echinochloa crusgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum Patrin.), Polygonum lapathifolium (L.), Amaranthus retroflexus (L.), Abutilis reilianus (L.), Abutilus abutillus (Abutilon theophrastis Medic Medi), Commelina communis (L.); the weight ratio of the flufenacet to the clomazone is 10:1-1:10, preferably 8:1-1:8, further preferably 5:1-1:5, and more preferably 2.5:1-1: 2.5.
Description
Technical Field
The invention relates to the field of agriculture, in particular to application of a flufenacet-containing and clomazone weeding composition in preventing and controlling undesirable plant germination or growth of dry-land crops.
Background
The farmland weeds have the hazards of deteriorating the ecological environment of crops, reducing the yield and quality of the crops, influencing the health of people and livestock and the like.
The current physical measures for farmland weeds are:
the different crop rotation has different associated weeds or parasitic weeds, and these weeds are identical to or similar to the crop survival environment. Deep ploughing and soil preparation, namely, turning over and burying weed seeds scattered on the soil surface in the deep layer of soil in the previous year by deep ploughing so that the weed seeds cannot germinate and emerge, and cutting off underground rootstocks or turning over the rootstocks on the surface to expose and sun the rootstocks for death.
The weed around the weeds is removed as one of main sources of the weeds in the field, and the weeds are brought into the field through wind power, running water, movement of people and livestock or spread to the field through underground roots and stems, so the weeds must be removed to prevent the diffusion.
The use of chemical herbicides is one of the important marks of modern agriculture, and in recent years, the sale amount of herbicides has increased year by year and the application area has also expanded year by year. However, with the continuous use of large areas of numerous herbicide species, numerous problems arise, such as the onset of emergence of weed resistance problems, particularly of resistance problems in older weeds; in addition, the single herbicide has single action mode, short lasting period and the like. Thus, there is an urgent need for long-acting herbicides and combinations thereof that have a broad herbicidal spectrum, are highly selective, and are less stressful for weed resistance.
The present inventors have surprisingly found that the combination of flufenacet and clomazone has an unexpected and outstanding effect on controlling barnyard grass (Echinochlorrucaria (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum mRNA), Polygonum griffithium (Polygonum lapathifolium L.), Amaranthus retroflexus (Amaranthus retroflexus L.), Abutilon theophrastis (Abutilon theophrasti Meic.), and Commelina communis (Commelina communis L.).
Disclosure of Invention
A herbicidal composition containing flufenacet and clomazone exhibits synergistic effect on the control of barnyard grass (Echinochloa crusgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum Patrin.), Polygonum tinctorium (Polygonum lapathifolia L.), Amaranthus retroflexus L.), Abutilin (Abutilon theoflaxus Medic.), and Commelina communis (Commelina communis L.) at a rate lower than the rate at which each compound is applied alone.
The synergistic effect can result in a reduced application rate of the individual herbicides, a higher efficacy at the same application rate, control of previously untreated varieties, control of varieties tolerant or resistant to a single herbicide or to multiple herbicides, an extended application period and/or a reduction in the number of individual applications required; and for the user, a more economically and ecologically advantageous weed control system is obtained.
The present invention provides the use of a herbicidal composition containing flufenacet and clomazone for controlling undesired plant germination or growth in dry-land crops.
The invention provides application of a weeding composition containing flufenacet and clomazone in preventing and controlling undesirable plant germination or growth in dry land crops, wherein the weight ratio of the flufenacet to the clomazone is preferably 10:1-1:10, preferably 8:1-1:8, further preferably 5:1-1:5, and more preferably 2.5:1-1: 2.5.
The invention provides a use of a weeding composition containing flufenacet and clomazone for preventing and treating undesired plant germination or growth in dry land crops, such as Echinochloa crusgalli (L.) Beauv.), Chenopodium album (L.) Chenopodium album, Xanthium sibiricum (pallrin), Polygonum tinctorium (L.), Amaranthus retroflexus (L.), Abutilin theophyllum Abutilis (L.), Abutilin theophila Medic, and Commelina communis (L.).
The present invention provides the use of a herbicidal composition comprising flufenacet and clomazone in a synergistically synergistic ratio for the undesired germination or growth of barnyard grass (Echinochlorrucsgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum mRNA atrin.), Polygonum griffithium (Polygonum lapathifolium L.), Amaranthus retroflexusL (Amaranthus retroflexus L.), Abutilon theophrasti medicinal, and Commelina communis L.
In the weeding composition, the weight ratio of flufenacet to clomazone is 10:1-1:10, preferably 8:1-1:8, further preferably 5:1-1:5, and more preferably 2.5:1-1: 2.5.
In the weeding composition, the weight ratio of flufenacet to clomazone can also be 10:1,9:1,8:1,7:1,6:1,5:1,4:1,3:1,2.5:1,2:1,1.5:1,1:1,1:1.5,1:2,1:2.5,1:3,1:4,1:5,1:6,1:7,1:8,1:9 and 1: 10.
The use of the herbicidal composition containing flufenacet and clomazone of the invention for controlling undesired plant germination or growth in soybean, potato, cotton, corn, wheat, peanut crops, cockspur grass (Echinochloa crusgalli (L.) Beauv.), quinoa (Chenopodium album L.), xanthum sibiricum (Xanthium sibiricum Patrin.), Polygonum lapathifolium (Polygonum lapathifolium L.), Amaranthus retroflexus (Amaranthus retroflexus L.), Abutilon (Abutilon theophrasti medicinal., Diels.), Commelina communis (Commelina communis L.), for controlling cockspur grass (Echinochloa crura crusgalli, L.) in soybean, potato, cotton, corn, wheat, peanut crops.
A method for controlling undesired vegetation in Echinochloa crusgalli (L.) Beauv, Chenopodium album (L.), Xanthium sibiricum Patrin, Polygonum sordidum (Polygonum lapathifolium L.), Amaranthus retroflexus L, Abutilon theophrastis Medic, Commelina communis L, comprising applying a herbicidal composition comprising flufenacet and clomazone as described in the present invention in the presence of seeds of dry crops, seeds of dry crops or other reproductive parts of dry crops. The dry land crop is selected from soybean, potato, cotton, corn, wheat, peanut.
The present invention also provides a method for controlling undesired plants in barnyard grass (Echinochloa crusgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum Patrin.), Polygonum cuspidatum (Polygonum lapathifolia L.), Amaranthus retroflexus L.), Abutilon theophrastis (Abutilin theophilic Medic.), Commelina communis (Commelina communis L.), comprising: (i) before the undesired plants germinate (pre-emergence); (ii) after undesired plant germination (post-emergence); or (iii) applying a herbicidally effective amount of a herbicidal composition containing flufenacet and clomazone to the undesired plants or to the locus thereof at (i) and (ii).
The present invention also provides a method for controlling undesired plants in Echinochloa crusgalli (L.) Beauv, Chenopodium album (L.), Xanthium sibiricum Patrin, Polygonum cuspidatum (L.), Amaranthus retroflexus (L.), Abutilium theophrastis (Abutilon theophyllum L.), Abutilon theophrastis (Abutilin theftoides Medic.) and Commelina communis (Commelina communis L.), which comprises contacting the undesired plants or the growing field thereof with a herbicidally effective amount of said herbicidal composition containing flufenacet and clomazone. A herbicidally effective amount refers to the amount of the herbicidally active ingredient that is applied to control undesirable vegetation.
The invention also provides a method for controlling undesired plants such as Echinochloa crusgalli (L.) Beauv, Chenopodium album (L.), Xanthium sibiricum Patrin, Polygonum cuspidatum (L.), Amaranthus retroflexus (L.), Abutilium theophrastis (L.), Abutilon theophrastis (L.), Abutilon theophrastis (Abutilon theopterides (L.), Abutilon theophrastis (L.),) and Commelina communis (L.), and the herbicidal composition containing flufenacet and isoprotundus (L.) is applied to soil to prevent undesired plant germination or growth.
A method for controlling undesired plants such as Echinochloa crusgalli (L.) Beauv, Chenopodium album (L.), Xanthium sibiricum Patrin, Polygonum tinctorium L, Amaranthus retroflexus L, Abutilon theophrastic Medic, Commelina communis L, comprises applying flufenacet and clomazone in the herbicidal composition to the undesired plants or to the growing field thereof together or separately so as to control the undesired germination or growth of the plants.
A method for controlling undesired plants such as Echinochloa crusgalli (L.) Beauv, Chenopodium album (L.), Xanthium sibiricum Patrin, Polygonum sordidum (L.), Amaranthus retroflexus L., Abutilin theophrastin (Abutilon theophrastin Medic.), and Commelina communis L.
If the herbicidal composition according to the present invention is applied to the soil surface before germination, the weed seedlings are completely prevented from germinating, or the weeds grow to the cotyledon stage, but then they stop growing, and finally die completely after two to four weeks.
If the herbicidal composition is applied to the green parts of the plants after germination, the growth likewise stops sharply within a relatively short time after the treatment and the weed plants remain in the growth phase at the point in time of application or they die completely after a certain time, in such a way that the competition caused by the weeds which are harmful to the crop plants is eliminated early and continuously.
In the methods of the present invention, the herbicidal compositions may be applied in a conventional manner using techniques well known to those skilled in the art. Methods of application include, but are not limited to, application to undesired plants or their locus of growth, such as to the area adjacent to the plants, as well as pre-emergence, post-emergence, foliar (strewn, directional, ribbon, point, mechanical, jump top or replying), and application by hand, backpack, mechanical, tractor, or aerial (airplane, helicopter, drone).
A method for controlling undesired plants in Echinochloa crusgalli (L.) Beauv, Chenopodium album (Chenopodium album mL), Xanthium sibiricum Patrin, Polygonum cuspidatum (Polygonum lapathifolium L.), Amaranthus retroflexus L, Abutilon theophrasticum Medic, Commelina communis L, which comprises adding the herbicidal composition of the present invention to irrigation water, and applying it to undesired plants or to the place where it grows by using a ground or aerial duster, sprayer, or granule.
The type of application depends in a well-known manner on the intended purpose; in any case, the technique should ensure the best possible distribution of the active ingredients in the herbicidal compositions according to the invention.
The application rate of flufenacet can vary within wide limits, for example from 50g to 1500g of a.i./ha (hereinafter, a.i./ha denotes "active substance/ha" based on 100% pure active compound), preferably 100-. Flufenacet, when used before sowing, before planting or pre-and post-emergence, has a relatively broad spectrum of harmful plants to be controlled, for example annual and perennial monocotyledonous or dicotyledonous undesired plants.
The rate of application of clomazone can vary within wide limits, for example from 10g to 1000g a.i./ha, preferably 100-; it has better control effect on annual or perennial annual and perennial monocotyledonous or dicotyledonous undesirable plants.
The flufenacet and clomazone of the invention can be applied directly, in the form of their formulations or in the use forms prepared therefrom. The formulations are in the form of wettable powder, missible oil, suspending agent, microcapsule, microemulsion, aqueous emulsion, suspoemulsion, microcapsule suspension-suspending agent, water dispersible granule, ultra-low volume liquid, tablet, ultra-low volume dispersible granule, pill or dry suspension, and granule. In each formulation form, the best possible distribution of the active compounds and auxiliaries used according to the invention is to be ensured.
The formulations of the invention can be prepared by mixing the flufenacet and clomazone in a known manner with fillers and/or surfactants, it being possible for further conventional additives, such as siccatives and colorants, stabilizers, pigments, defoamers, preservatives, thickeners, etc., to be added.
According to the present invention, the term "bulking agent" refers to natural or synthetic organic or inorganic compounds that can be combined or associated with an active ingredient to make it easier to apply to a subject (e.g., a plant, crop or grass). Thus, the filler is preferably inert, at least should be agriculturally acceptable. The filler may be solid or liquid.
Suitable solid carriers are: for example, plant-based powders (for example, particles of soybean powder, starch, cereal flour, wood flour, bark powder, saw dust, walnut shell powder, bran, cellulose powder, coconut shell, corn cob and tobacco stalk, residues after extraction of plant essence, and the like), clays (for example, kaolin, bentonite, acidic china clay, and the like), talc powders, silicas (for example, diatomaceous earth, silica sand, mica, hydrous silicic acid, calcium silicate), activated carbon, natural minerals (pumice, attapulgite, zeolite, and the like), calcined diatomaceous earth, sand, plastic media (for example, polyethylene, polypropylene, polyvinylidene chloride, and the like), inorganic mineral-based powders of potassium chloride, calcium carbonate, calcium phosphate, and the like, chemical fertilizers such as ammonium sulfate, ammonium phosphate, urea, ammonium chloride, and the like, and soil fertilizers, and these substances may be used alone or in combination of 2 or more.
Suitable liquid carriers may be selected from, for example, water, alcohols (e.g., methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.), ketones (e.g., acetone, methyl ethyl ketone, diisobutyl ketone, cyclohexanone, etc.), ethers (e.g., diethyl ether, dioxane, methyl cellulose, tetrahydrofuran, etc.), aliphatic hydrocarbons (e.g., kerosene, mineral oil, etc.), aromatic hydrocarbons (e.g., benzene, toluene, xylene, mineral spirits, alkylnaphthalenes, chlorinated aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, chlorobenzene, etc.), halogenated hydrocarbons, amides, sulfones, dimethyl sulfoxide, mineral and vegetable oils, animal oils, etc.
Suitable surfactants are emulsifiers, dispersants or wetting agents of an ionic or nonionic nature, or mixtures of these surfactants. Suitable examples of such surfactants include fatty alcohol-polyoxyethylene ethers, polyoxyethylene alkylaryl ethers, polyoxyethylene higher fatty acid esters, phosphoric acid esters of polyoxyethylene alcohols or phenols, fatty acid esters of polyhydric alcohols, sodium alkylaryl sulfonates, naphthalenesulfonic acid polymers, lignosulfonates, high-molecular comb-shaped dendritic copolymers, butylnaphthalenesulfonates, alkylaryl sulfonates, sodium alkylsulfosuccinates, fats and oils, polyacrylic acid salts such as condensates of fatty alcohols with ethylene oxide and alkyltaurates, and protein hydrolysates. Suitable oligosaccharides or polymers are based, for example, on ethylene monomers, acrylic acid, polyoxyethylene or polyoxypropylene alone or in combination with, for example, (poly) alcohols or (poly) amines. When one of the active compounds and/or one of the inert carriers is insoluble in water and when applied in water, a surfactant must be present.
If appropriate, the herbicidal compositions according to the invention may also be provided with further additional components, for example protective colloids, adhesives, tackifiers, thickeners, thixotropic agents, penetrants, stabilizers, sequestering agents, complex-forming agents. In general, the active ingredient may be combined with any solid or liquid additive conventionally used for formulation purposes.
The herbicidal composition of the present invention may be formulated primarily, i.e., the materials in the composition have been mixed; the ingredients of the composition may also be provided in a single dose form, mixed in a tub or tank prior to use, and then diluted to the desired concentration. Wherein the formulation provided by the invention is preferably used as the main ingredient.
The herbicidal composition according to the present invention containing flufenacet and clomazone may further comprise various active compounds of other components, for example selected from the group consisting of fungicides, insecticides, acaricides, nematocides, bird repellents, soil structure improvers, and plant growth regulators.
Use of a flufenacet-and clomazone herbicidal composition for controlling undesired plant germination or growth in dry-land crops. A flufenacet-and clomazone herbicidal composition exhibits synergistic effect on control of Echinochloa crusgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum Patrin), Polygonum cuspidatum (Polygonum lapathifolium L.), Amaranthus retroflexus L.), Abutilin abutillus (Abutilonthes theoflaccidum Medic.), and Commelina communis (Commelina communis L.) at a rate lower than the rate at which each compound is applied alone.
The synergistic effect of the present invention allows for a reduced application rate of individual herbicides, a higher efficacy at the same application rate, control of previously untreated varieties, control of varieties tolerant or resistant to a single herbicide or to multiple herbicides, an extended application period and/or a reduced number of individual applications required; and for the user, a more economically and ecologically advantageous weed control system is obtained.
Detailed Description
The invention will be further illustrated by the following examples:
preparation example
In the formulation examples described below, the percentages are by weight, unless otherwise indicated.
Example 110% flufenacet +10% clomazone suspension
Mixing the active components and various assistants with water, and forming a high-dispersion and stable suspension system after high-speed shearing dispersion and sanding by a sand mill to prepare the suspending agent.
Example 224% flufenacet +8% clomazone wettable powder
The active components, various auxiliary agents, fillers and the like are mixed according to the proportion of the formula, and the mixture is crushed by a superfine pulverizer to obtain the 24 percent flufenacet and 8 percent clomazone wettable powder.
Example 315% flufenacet +10% clomazone Water dispersible granules
The active component, the dispersant, the wetting agent, the disintegrant and the filler are uniformly mixed according to the proportion of the formula, and are crushed into wettable powder by airflow, a certain amount of water is added for mixing and extrusion molding, and the water dispersible granule containing 15 percent of flufenacet and 10 percent of clomazone is obtained after drying and screening.
Example 512% flufenacet +10% clomazone emulsifiable concentrate
The components are prepared according to the proportion and are uniformly stirred to obtain a uniform phase, and then 12 percent of flufenacet and 10 percent of clomazone missible oil are obtained.
Example 815% flufenacet +20% clomazone emulsion in water
Oil phase:
water phase:
dissolving flufenacet and clomazone in N-methyl pyrrolidone, and adding ethoxylated castor oil to obtain an oil phase; uniformly mixing the ethoxylated castor oil, the calcium dodecylbenzene sulfonate and the water according to a formula to obtain a water phase; adding the oil phase into the water phase under stirring to obtain the aqueous emulsion of 15 percent flufenacet and 20 percent clomazone.
Example 1227% flufenacet +18% clomazone microcapsule suspension-suspension formulation
Capsule core:
capsule wall:
water phase:
oil phases formed by Lupranat M20S, clomazone and Plurafac LF1312 are added into aqueous solution containing DETA and ATLOX 4913 to form emulsion. Then heating and maintaining the temperature at 50 DEGoAdding catalyst to react for 2 h. Cooling to obtain the clomazone microcapsule.
Flufenacet, Synperonic PE/64(from Croda), a defoaming agent, urea and water are uniformly mixed according to a certain proportion and are sanded to prepare the aqueous suspension containing the flufenacet.
The microcapsule suspension-suspending agent of the invention is obtained by adding the microcapsule containing clomazone into the aqueous suspending agent containing flufenacet.
Example 1334% flufenacet +20% clomazone suspoemulsion
Dissolving clomazone in dipropylene glycol dibenzoate, and adding ethoxylated castor oil to obtain oil phase of clomazone.
Flufenacet, nonylphenol polyoxyethylene ether phosphate, modified calcium lignosulfonate, xanthan gum, bentonite, glycerol and water are uniformly mixed according to a proportion and are subjected to sanding to prepare the suspending agent.
Adding the oil phase containing clomazone into the flufenacet-containing suspending agent to obtain the 34 percent flufenacet and 20 percent clomazone suspending emulsion.
Example 1420% flufenacet +15% clomazone Dry suspension
Mixing the active components and various assistants with water, forming a high-dispersion and stable suspension system after high-speed shearing dispersion and sanding by a sand mill to prepare the suspending agent, and drying the obtained suspension by a fluidized bed to obtain the dry suspending agent.
Example 162.5% flufenacet +2% clomazone ultra-Low volume liquid formulation
The components are prepared according to the proportion and stirred evenly to obtain a uniform phase, and the ultralow-volume liquid containing 2.5 percent of flufenacet and 2 percent of clomazone is obtained.
Example 1765% Fluthiacetone +35% clomazone
Mixing the above components uniformly.
The proportion in the above examples is weight percent.
Biological examples
Soil spraying method
A bowl soil spraying method in NY/T1155.3-2006 is adopted. Seeds of weeds in potato fields were sown in plastic pots, 20 seeds per pot. 2 days after sowing, the active compounds suspended or emulsified in water are applied by means of finely distributed nozzles. After spraying the medicine for 1 hour, the medicine liquid is naturally dried and then is placed in a light incubator for cultivation. The treatment without active ingredient was used as a blank.
Referring to agricultural industry standard NY/T1155.7-2006 of the people's republic of China, part 7 of the herbicide in the indoor bioassay test criteria of pesticides: combined action assay of compounding tests were conducted.
After 120 days of test treatment, the target damage symptoms and growth inhibition condition are visually observed, the fresh weight of the overground part is weighed, and the fresh weight inhibition rate (%) is calculated.
The DPS data processing system is adopted to calculate toxicity regression equations of single-dose flufenacet, clomazone and the combination of flufenacet and clomazone, and an EC50 value and a 95% confidence limit are calculated. The co-toxicity coefficient was calculated by the Sun cloud Peel method.
Fresh weight inhibition ratio P (%) = (fresh weight of control weed-fresh weight of treated weed)/fresh weight of control weed × 100
Virulence index = EC50 for standard herbicide/EC 50 × 100 for test herbicides
Theoretical virulence index (TTI)) of the mixture = virulence index of a herbicide x percent of a herbicide + virulence index of B herbicide in the mixture x percent of B herbicide in the mixture
Co-toxicity coefficient (CTC) = actual toxicity index/theoretical toxicity index of mixed agent x 100
The co-toxicity coefficient is more than 120, which shows the synergistic effect; antagonism is achieved when the ratio is less than 80; between 80 and 120, is shown as additive.
The plant varieties tested were as follows:
barnyard grass (Echinochloa crusgalli (L.) Beauv.)
Chenopodium album L (Chenopodium album L.)
Xanthium sibiricum Patrin
Polygonum flaccidum L (Polygonum lapathifolia L.)
Amaranthus retroflexus L (Amaranthus retroflexus L.)
Abutilon theophrasti medicinal)
Common comfrey (Commelina communis L.)
TABLE 1 results of virulence tests on barnyard grass (Echinochloa crusgalli (L.) Beauv.)
TABLE 2 toxicity test results on Commelina communis L
TABLE 3 virulence test results for Xanthium sibiricum Patrin
TABLE 4 toxicity test results for Polygonum hydropiper L
TABLE 5 virulence test results on Amaranthus retroflexus L
TABLE 6 toxicity test results for Abutilon theophrasti medicinal
TABLE 7 virulence test results on Chenopodium album L
The test results of tables 1-7 show that: the control of flufenacet and clomazone in the range of 10:1 to 1:10 showed significant synergistic effect against barnyard grass (Echinochloa crusgalli (L.) Beauv.), Chenopodium album (L.), Xanthium sibiricum (Xanthium sibiricum Patrin.), Polygonum griseum L., Amaranthus retroflexus L., Abutilin theophyllum Abutitum (Abutilon theophyllum Medic.), and Commelina communis L.
Claims (11)
1. Use of a herbicidal composition comprising flufenacet and clomazone in a weight ratio of 10:1 to 1:10, preferably 8:1 to 1:8, further preferably 5:1 to 1:5, more preferably 2.5:1 to 1:2.5, for controlling undesired plant germination or growth in dry land crops.
2. The use as claimed in claim 1, wherein the undesirable plants are Echinochlorus crusgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium sibiricum (Xanthium sibiricum activator), Polygonum tinctorium (Polygonum lapathifolia L.), Amaranthus retroflexus (Amaranthus retroflexus L.), Abutilon (Abutilon theopterti medicinal), and Commelina communis (Commelina vanica L.).
3. Use according to claim 1, wherein the dry land crop is soybean, potato, cotton, corn, wheat, peanut.
4. The use according to claim 1, wherein the herbicidal composition is in the form of wettable powders, emulsifiable concentrates, suspensions, microcapsules, microemulsions, aqueous emulsions, suspoemulsions, microcapsule suspension-suspensions, water dispersible granules, ultra-low volume liquids, tablets, ultra-low volume dispersible granules, pellets or dry suspensions, granules.
5. A method of controlling undesirable vegetation in a dry land crop comprising: (i) before the undesired plants germinate (pre-emergence); (ii) after undesired plant germination (post-emergence); or (iii) applying a herbicidally effective amount of a herbicidal composition comprising flufenacet and clomazone to the undesired plants or to the locus thereof at (i) and (ii), the weight ratio of flufenacet to clomazone being 10:1 to 1:10, preferably 8:1 to 1:8, further preferably 5:1 to 1:5, more preferably 2.5:1 to 1: 2.5; the undesirable plants are Echinochloa crusgalli (L.) Beauv.), Chenopodium album (Chenopodium album L.), Xanthium Sibiricum (Xanthium sibiricum Patrin.), Polygonum cuspidatum (Polygonum lapathifolium L.), Amaranthus retroflexus L., Abutilis Abutilon (Abutilin theftream Medic.), and Commelina communis L.
6. The method of claim 5, wherein the dry land crop is soybean, potato, cotton, corn, wheat, peanut.
7. The method of claim 5, which comprises contacting the undesired plants or their growing locus with a herbicidally effective amount of a herbicidal composition comprising flufenacet and clomazone.
8. The method as claimed in claim 5, which comprises applying the herbicidal composition containing flufenacet and clomazone to soil to prevent the germination or growth of undesired plants.
9. The method as claimed in claim 5, which comprises applying flufenacet and clomazone in the herbicidal composition to undesired plants or a growing field thereof together or separately so as to control the germination or growth of the undesired plants.
10. The method as claimed in claim 5, which comprises applying flufenacet and clomazone in the herbicidal composition to the ground before the germination of the undesired plants, the foliage of the undesired plants after the germination, together or separately, to prevent the germination or growth of the undesired plants.
11. The method of claim 5, comprising applying the flufenacet-and clomazone-containing herbicidal composition in the presence of a plant of a dry-land crop, a seed of a dry-land crop, or other reproductive part of a dry-land crop, the dry-land crop being soybean, potato, cotton, corn, wheat, peanut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2777397A1 (en) * | 2013-03-15 | 2014-09-17 | UPL Limited | Selective weed control using D-napropamide |
| CN107616183A (en) * | 2017-10-13 | 2018-01-23 | 江苏辉丰生物农业股份有限公司 | Herbicidal combinations containing flufenacet Yu clomazones |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2777397A1 (en) * | 2013-03-15 | 2014-09-17 | UPL Limited | Selective weed control using D-napropamide |
| CN107616183A (en) * | 2017-10-13 | 2018-01-23 | 江苏辉丰生物农业股份有限公司 | Herbicidal combinations containing flufenacet Yu clomazones |
Non-Patent Citations (3)
| Title |
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| 刘广文: "《现代农药剂型加工技术》", 30 September 2012 * |
| 刘步林: "《农药剂型加工技术（第二版）》", 31 October 1998, 化学工业出版社 * |
| 天门市地方志编纂委员会: "《天门市志》", 31 August 2013 * |
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