CN111165501A - Weeding composition containing triafamone and mefenacet - Google Patents
Weeding composition containing triafamone and mefenacet Download PDFInfo
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- CN111165501A CN111165501A CN201911389531.3A CN201911389531A CN111165501A CN 111165501 A CN111165501 A CN 111165501A CN 201911389531 A CN201911389531 A CN 201911389531A CN 111165501 A CN111165501 A CN 111165501A
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- Prior art keywords
- mefenacet
- triafamone
- weeding composition
- weeds
- composition containing
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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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
-
- 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
- A01N43/74—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 one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
Abstract
The invention discloses a weeding composition containing triafamone and mefenacet, wherein the effective components of the weeding composition are triafamone and mefenacet; the mass ratio of the triafamone to the mefenacet is 1-20: 20 to 50. The weeding composition has a synergistic effect, is mainly used for preventing and killing annual and perennial weeds in paddy fields, and has special effects on barnyard grass, rhizoma alismatis and ludwigia prostrata. The two components expand the weed control spectrum, have obvious synergistic effect, reduce the dosage by compounding, have high safety, reduce the times of drug application, reduce the cost of drug application, and also can control the weed population migration, reduce the drug resistance of the weeds, maintain the agricultural ecological balance and protect the environment, so the two components are worthy of popularization.
Description
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a weeding composition containing triafamone and mefenacet.
Background
Fomesalamine is an acetolactate synthase (ALS) inhibitor that inhibits cell division and plant growth by preventing the biosynthesis of valine, leucine, and isoleucine. It is mainly absorbed by root system and bud, and has the herbicidal activity of stem and leaf absorption. The herbicide is used before or in the early stage after germination, is used for preventing and removing gramineous weeds, sedges and broadleaf weeds in paddy fields, and can effectively prevent and remove barnyard grass, paspalum distichum, scirpus planiculmis, annual sedges and the like; and has good inhibition effect on broad-leaved weeds such as ludwigia prostrata, arrowhead, carignane, potamogeton indica, bidens tripartita, etc., and perennial cyperus rotundus. Can be mixed with other herbicides to expand the weed control spectrum.
Mefenacet belongs to anilide herbicides and is an inhibitor of cell growth and division. It is observed that the agent acts at the plant growth point in the resting phase, metabolic phase of the cell reproduction cycle, and inhibits the growth of barnyard grass until death by inhibiting cell division and enlargement. The appearance symptoms of the drug-receiving barnyard grass are: the growing points of the stem leaf part and the root part are abnormally large, the leaf sheath body is dark green, the plant growth is inhibited, and finally the stem leaf becomes yellow and withered. Barnyard grass withering time is prolonged with increasing leaf age. The herbicide has control effect on annual weeds and wool grass, is mainly used for preventing and removing gramineous weeds and high-activity barnyard grass killing agent in rice fields, and can kill barnyard grass from the period before the occurrence of the barnyard grass to the period of three leaves. The weeding composition is used for transplanting rice fields, can effectively prevent and kill gramineous weeds, has special effect on barnyard grass, and can kill the barnyard grass from the pre-emergence period to the 3-leaf period; the composition has good control effect on feltwort, rhizoma alismatis, monochoria vaginalis, herba arthrodii, special-shaped cyperus rotundus, broken mango and perennial cyperus rotundus and the like.
The compounding of the triafamone and the mefenacet can expand the weed control spectrum and has obvious synergistic effect; the compound can reduce the dosage, has high safety, reduces the times of drug administration, reduces the cost of drug application, can control the weed population migration, reduces the drug resistance of weeds, maintains the agricultural ecological balance and protects the environment, so the compound of the two is worthy of popularization.
Disclosure of Invention
The invention aims to provide a weeding composition containing triafamone and mefenacet, which has remarkable synergistic effect and wide weed control spectrum.
The purpose of the invention can be realized by the following technical scheme:
a weeding composition containing triafamone and mefenacet comprises the effective components of triafamone and mefenacet; the mass ratio of the triafamone to the mefenacet is 1-20: 20 to 50.
In a further scheme, the mass ratio of the triafamone to the mefenacet is 7-13: 20-50 or 20: 20.
in a further scheme, the mass of the effective components accounts for 21-70% of the total mass of the weeding composition.
In a further scheme, the dosage form of the weeding composition is suspending agent, wettable powder, water dispersible granules, suspoemulsion or dispersible oil suspending agent.
In a further scheme, the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise a solvent, an emulsifier, a dispersant, an antifreezing agent, a wetting agent and a carrier.
The invention also aims to provide the application of the weeding composition in preventing and killing barnyard grass, wherein the mass ratio of the triafamone to the mefenacet is 7-13: 20-50 or 20: 20.
the third invention aims to provide application of the weeding composition in preventing and removing alisma orientale and ludwigia prostrata, wherein the mass ratio of the triafamone to the mefenacet is 1: 50,7-13: 20-50 or 20: 20-30.
The active ingredients of the weeding composition are the triafamone and the mefenacet, the dosage of the active ingredients depends on the respective application amount when the weeding composition is used alone, the combination ratio of the triafamone and the mefenacet and the synergistic degree of the two, the weeding composition especially protects 1-20% of the active ingredient A of the weeding composition and 20-50% of the active ingredient B of the mefenacet, and the active ingredients are prepared into a suspending agent, a wettable powder, a water dispersible granule, a suspoemulsion and a dispersible oil suspending agent by adding auxiliary materials including a solvent, an emulsifier, a dispersant, an antifreezing agent, a wetting agent and the like.
The emulsifier is one or more of alkylphenol polyoxyethylene, triphenylethylene polyoxyethylene, benzyl phenol polyoxyethylene, phenethyl phenol polyoxyethylene, fatty alcohol polyoxyethylene, phenethyl phenol polyoxyethylene polyoxypropylene, fatty amine polyoxyethylene, castor oil polyoxyethylene, calcium dodecyl benzene sulfonate and styryl phenyl polyoxyethylene.
The dispersing agent is one or more of alkylphenol polyoxyethylene ether formaldehyde condensate, ammonium sulfate, naphthalenesulfonate formaldehyde condensate, p-methoxy fatty amido benzenesulfonic acid, calcium lignosulfonate, polycarboxylate, alkylphenol polyoxyethylene ether sulfate, methylene dinaphthalene sodium sulfonate, calcium alkyl benzene sulfonate, fatty acid ester sulfate, alkylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether.
The antifreezing agent is one or more of calcium chloride, methanol, ethanol, ethylene glycol, propylene glycol and glycerol.
The wetting agent is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium butyl naphthalene sulfonate, sodium alkyl sulfonate, tea seed powder, Chinese honeylocust fruit powder and soapberry powder.
the carrier is divided into a solid carrier and a solvent, wherein the solid carrier is one or more of organic bentonite, white carbon black, kaolin, light calcium carbonate, sodium sulfate, ammonium sulfate, diatomite, starch, argil and the like, and the solvent is one or more of deionized water, methyl oleate, toluene, xylene, chlorobenzene, solvent oil, α -methylnaphthalene, turpentine, dichloromethane, trichloromethane, methanol, ethanol, glycerol, ethylene glycol, butanol, isoamyl alcohol, propylene glycol, cyclohexanone, isophorone, acetophenone, ethyl acetate, propyl acetate, butyl acetate, N-Dimethylformamide (DMF), dimethyl sulfoxide (DMSO), No. 150 solvent oil, cellosolve and the like, and the carrier can be used alone or in a composite way.
The above various adjuvants or carriers are commercially available.
The weeding composition is used for annual and perennial weeds in a direct seeding field or a transplanting field of rice, and has special effects on barnyard grass, rhizoma alismatis and ludwigia prostrata.
Can effectively prevent and kill gramineous weeds, has special effect on barnyard grass, and can kill the barnyard grass in 3-leaf period before the occurrence. The composition has good control effect on feltwort, rhizoma alismatis, monochoria vaginalis, herba arthrodii, special-shaped cyperus rotundus, broken mango and perennial cyperus rotundus and the like. The herbicide composition has the characteristics of high herbicidal activity, wide herbicidal spectrum and convenient use, is safe to rice, belongs to an environment-friendly herbicide, has obvious synergistic effect by compounding, reduces the using dosage by compounding, has high safety, reduces the times of using the herbicide composition, reduces the pesticide application cost, can control the weed population transition, reduces the drug resistance of weeds, maintains the agricultural ecological balance and protects the environment, and is worthy of popularization.
Detailed Description
The invention is further illustrated below in the specific examples of several different dosage forms. The invention is by no means limited to these examples. All percentages in the formulation are by weight.
Firstly, formulation example of a dosage form:
example 1, 21% suspending agent
Example 2, 27% dispersible oil suspension
Example 3, 37% suspoemulsion:
example 4, 53% water dispersible granule:
example 5, 70% wettable powder:
secondly, indoor biological activity determination:
the reasonability of the formula is verified by measuring the indoor biological activity of the flusulfamide and mefenacet composition herbicide on the weeds in the paddy field.
The test method comprises the following steps: a greenhouse potting method is adopted, quantitative weeds (100 weeds per pot) are sown in pots, the pots are covered with fine soil with the thickness of 0.5-1 cm and then are placed in a greenhouse for cultivation, the treatment by a chemical soil method is carried out when the weeds grow to 2cm after emerging, each treatment is repeated for 4 times, and the treatment without chemicals is used as a control. And (4) culturing the treated test material in a greenhouse, and regularly observing the growth condition of the target weeds. After the test treatment for 20 days, weighing the fresh weight of the overground part of weeds.
The investigation method adopts an absolute value investigation method, firstly investigates the fresh weight of the residual weeds in each pot, and then calculates the fresh weight control effect of each treatment according to the following formula: e is (C-T)/C is multiplied by 100 percent, wherein E is the actual control effect, C is the fresh weight of the control weed, and T is the fresh weight of the treated weed.
The combination of the two was evaluated for the type of action on weeds by the Gowing method. The theoretical control effect of the mixed herbicide is calculated according to the following formula: e0＝X+Y(100-X)/100
In the formula: x is the fresh weight control effect on weeds when the dosage of the triafamone is P;
y is the fresh weight control effect on weeds when the dosage of mefenacet is Q;
E0is a theoretical prevention effect.
Table 1: combined virulence effect of herbicide composition on barnyard grass (drug soil method)
As can be seen from Table 1 above, when the triafamone (A) and the mefenacet (B) are compounded, the A + B is E-E of Echinochloa crusgalli0A value between 5.42 and 15.54, wherein A: b is 7-13: 20-50 or 20: 20, E-E0Both are more than 10, which indicates that the triafamone (A) and the mefenacet (B) are aboveThe synergistic effect is generated under the condition of the mixture ratio.
Table 2: combined toxicity of herbicide composition on alisma orientale (drug soil method)
As can be seen from Table 2 above, when the triafamone (A) and the mefenacet (B) are compounded, the A + B is opposite to the E-E of the Alisma orientale0A value between 7.35 and 17.30, wherein A: b is 1: 50,7-13: 20-50 or 20: 20-30 times, E-E0Both are more than 10, which shows that the triafamone (A) and the mefenacet (B) have synergistic effect under the condition of the mixture ratio.
Table 3: combined toxicity effect (drug soil method) of herbicide composition on ludwigia prostrata
As can be seen from the above Table 3, when the triafamone (A) and the mefenacet (B) are compounded, A + B is opposite to E-E of the ludwigia prostrata0A value between 3.87 and 16.75, wherein A: b is 1: 50,7-13: 20-50 or 20: 20-30 times, E-E0Both are more than 10, which shows that the triafamone (A) and the mefenacet (B) have synergistic effect under the condition of the mixture ratio.
Third, the embodiment of the drug effect:
test crops and subjects: the crop to be tested is a paddy field, and the test object is annual weed mainly comprising barnyard grass and the like. After transplanting, the mixture is applied after the rice seedlings are sufficiently slowed down and before most weeds emerge, and then water and spray are added.
Table 4: test result of pesticide effect of triafamone and mefenacet composition for preventing and killing weeds in paddy field
As can be seen from the test results in Table 4, the comprehensive control effects of the 27% triafamone mefenacet dispersible oil suspending agent (7: 20), the 37% triafamone mefenacet suspending agent (7: 30) and the 53% triafamone mefenacet water dispersible granule (13: 40) are all more than 90%, wherein the control effect of the 37% triafamone mefenacet suspending agent is optimal, and the comprehensive control effect on the annual weeds in the paddy field is 94.66%. Therefore, the composition of the triafamone and the mefenacet in the three proportions has obvious synergistic effect, can improve the control effect and expand the weed control spectrum.
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications can be made to the embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.
Claims (7)
1. The effective components are triafamone and mefenacet; the mass ratio of the triafamone to the mefenacet is 1-20: 20 to 50.
2. A herbicidal composition according to claim 1, characterized in that: the mass ratio of the triafamone to the mefenacet is 7-13: 20-50 or 20: 20.
3. the herbicidal composition containing triafamone and mefenacet according to claim 1, characterized in that: the mass of the effective component accounts for 21-70% of the total mass of the weeding composition.
4. The herbicidal composition containing triafamone and mefenacet according to claim 1, characterized in that: the dosage form of the weeding composition is suspending agent, wettable powder, water dispersible granules, suspoemulsion or dispersible oil suspending agent.
5. The herbicidal composition containing triafamone and mefenacet according to claim 1, characterized in that: the weeding composition further comprises auxiliary materials, wherein the auxiliary materials comprise a solvent, an emulsifier, a dispersing agent, an antifreezing agent and a wetting agent.
6. Use of the herbicidal composition as claimed in claim 1 for controlling barnyard grass, characterized in that: the mass ratio of the triafamone to the mefenacet is 7-13: 20-50 or 20: 20.
7. the application of the herbicidal composition as claimed in claim 1 for controlling alisma orientale and ludwigia prostrata, which is characterized in that: the mass ratio of the triafamone to the mefenacet is 1: 50,7-13: 20-50 or 20: 20-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389531.3A CN111165501A (en) | 2019-12-27 | 2019-12-27 | Weeding composition containing triafamone and mefenacet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389531.3A CN111165501A (en) | 2019-12-27 | 2019-12-27 | Weeding composition containing triafamone and mefenacet |
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| CN111165501A true CN111165501A (en) | 2020-05-19 |
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| CN201911389531.3A Pending CN111165501A (en) | 2019-12-27 | 2019-12-27 | Weeding composition containing triafamone and mefenacet |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988802A (en) * | 2004-07-23 | 2007-06-27 | 拜尔作物科学股份公司 | A use of sulfonanilides as agricultural and horticultural fungicide |
| CN101394743A (en) * | 2005-09-16 | 2009-03-25 | 拜尔作物科学股份公司 | Use of sulfonanilides as herbicide |
| CN101410014A (en) * | 2006-01-13 | 2009-04-15 | 拜尔作物科学股份公司 | A herbicide composition for paddy field |
| CN102186343A (en) * | 2008-08-14 | 2011-09-14 | 拜尔农作物科学股份公司 | Herbicidal combination comprising dimethoxy-triazinyl-substituted difluoromethane sulfonyanilides |
| CN102186346A (en) * | 2008-08-14 | 2011-09-14 | 拜尔农作物科学股份公司 | Herbicidal combination comprising dimethoxy-triazinyl-substituted difluoromethane sulfonylanilides |
-
2019
- 2019-12-27 CN CN201911389531.3A patent/CN111165501A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988802A (en) * | 2004-07-23 | 2007-06-27 | 拜尔作物科学股份公司 | A use of sulfonanilides as agricultural and horticultural fungicide |
| CN101394743A (en) * | 2005-09-16 | 2009-03-25 | 拜尔作物科学股份公司 | Use of sulfonanilides as herbicide |
| CN101410014A (en) * | 2006-01-13 | 2009-04-15 | 拜尔作物科学股份公司 | A herbicide composition for paddy field |
| CN102186343A (en) * | 2008-08-14 | 2011-09-14 | 拜尔农作物科学股份公司 | Herbicidal combination comprising dimethoxy-triazinyl-substituted difluoromethane sulfonyanilides |
| CN102186346A (en) * | 2008-08-14 | 2011-09-14 | 拜尔农作物科学股份公司 | Herbicidal combination comprising dimethoxy-triazinyl-substituted difluoromethane sulfonylanilides |
Non-Patent Citations (2)
| Title |
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| 张玉聚主编: "《除草剂应用与销售技术服务指南》", 30 September 2004, 金盾出版社 * |
| 沈国辉等: "《中国稻田杂草识别与防除》", 30 June 2018, 上海科学技术出版社 * |
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Application publication date: 20200519 |
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