CN103636645A - Monosulfuron-clodinafop-propargyl ester weeding composition - Google Patents
Monosulfuron-clodinafop-propargyl ester weeding composition Download PDFInfo
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- CN103636645A CN103636645A CN201310530819.4A CN201310530819A CN103636645A CN 103636645 A CN103636645 A CN 103636645A CN 201310530819 A CN201310530819 A CN 201310530819A CN 103636645 A CN103636645 A CN 103636645A
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- clodinafop
- propargyl
- monosulfuron
- monosulfmeturon
- propargyl ester
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Abstract
The invention discloses a monosulfuron-clodinafop-propargyl ester weeding composition. The monosulfuron-clodinafop-propargyl ester weeding composition comprises monosulfuron and clodinafop-propargyl ester as active components and the balance a pesticide assistant. A mass part ratio of monosulfuron to clodinafop-propargyl ester is in a range of 1: 5 to 5: 1, and the total mass of monosulfuron and clodinafop-propargyl ester is 5-60% that of the monosulfuron-clodinafop-propargyl ester weeding composition. According to application demands, the monosulfuron-clodinafop-propargyl ester weeding composition can be processed to form a dispersible oil suspending agent, a suspending agent, wettable powder or water dispersible granules, can be used for preventing and removing gramineous weeds and broadleaved weeds in the wheat field, has weed prevention and removal effects obviously superior to those of various single-component agents, reduces a herbicide use amount and delays herbicide resistance of weeds.
Description
Technical field
The invention belongs to agricultural chemicals Herbicidal combinations, be specifically related to a kind of Herbicidal combinations that contains monosulfmeturon and clodinafop-propargyl, is that to take monosulfmeturon and clodinafop-propargyl be active ingredient, for preventing and kill off wheat paddock grass family and broad leaved weed.
Background technology
Chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large area are used separately, caused a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is complicated mutually, grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, and single variety weed killer herbicide is used can not solve farmland weed, all can show defect and limitation in a certain respect.Variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.
Monosulfmeturon is a kind of sulfonylurea weed killer herbicide, by plant primary root and young young stem and leaf, is absorbed, and by suppressing acetolactate synthestase, stops the flourishing of branched-chain amino acid, causes weeds dead, is mainly used in preventing and kill off broad leaved weed.
Clodinafop-propargyl is phenoxy carboxylic acid herbicides, the activity that can suppress acetyl-CoA carboxylase in plant corpus, is interior suction conductivity weed killer herbicide, by blade and the leaf sheath of plant corpus, is absorbed, phloem conduction, accumulate in the meristematic tissue of plant corpus, suppress acetyl-CoA carboxylase, fatty acid is synthesized and stop, the growth division of cell can not normally be carried out, film systems etc., containing fat structural deterioration, finally cause plant dead, are mainly used in preventing and kill off grassy weed.
Variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.By formulation of pesticide, screening, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of monosulfmeturon and clodinafop-propargyl, find that monosulfmeturon and clodinafop-propargyl are mixed, in certain mixed ratio scope, wheat paddock grass family and broad leaved weed are had to addition or synergistic effect, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the Herbicidal combinations of the weeds of wheat comprehensive regulation.
Technical scheme: for achieving the above object, the invention provides a kind of composition that contains monosulfmeturon and clodinafop-propargyl, the ratio of quality and the number of copies of monosulfmeturon and clodinafop-propargyl is 1:5～5:1, that to take monosulfmeturon and clodinafop-propargyl be active ingredient, monosulfmeturon and the clodinafop-propargyl gross mass mark percentage composition in herbicidal composition is 5%～60%, and surplus is the upper acceptable insecticides adjuvant of agricultural.
Described Herbicidal combinations can be according to the application forms that well known to a person skilled in the art method, be mixed with applicable agricultural uses such as dispersibling oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
Described Herbicidal combinations also contains acceptable insecticides adjuvant in the required agricultural of preparation pesticidal preparations, be selected from one or more in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, bleeding agent, thickener, defoamer, antifreezing agent, disintegrant, binding agent, filler, carrier, medium, surfactant, be known substance, various auxiliary agents conventional in pesticidal preparations, according to different situations, can change to some extent, be not particularly limited.
The production technology of the described various application forms of Herbicidal combinations all belongs to existing known technology, does not repeat them here.
Herbicidal combinations of the present invention, adopts cauline leaf spray method to use, and also can adopt as required other operation techniques of the upper application of agricultural.
Herbicidal combinations of the present invention, should be used at wheat paddock grass family and broad leaved weed 2-4 leaf phase in use.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, in certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single dose, reduced the using dosage of agricultural chemicals, reduced medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of active ingredients, has expanded herbicidal spectrum, and a drug can solve various weeds problems, has made up defect and limitation when single dose is used.
3, Herbicidal combinations provided by the invention, two kinds of active ingredient mechanism of action are different, can overcome the shortcoming that long-term single use easily produces resistance, extend the service life of medicament, the comprehensive regulation important in inhibiting to Weed Resistance.
4, Herbicidal combinations provided by the invention, rapidly, the lasting period is long in drug effect performance, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Technology origin of the present invention: be further to understand the synergy that monosulfmeturon and clodinafop-propargyl are mixed to weeds, the inventor is mixed and has carried out formulation screening test monosulfmeturon and clodinafop-propargyl:
Test material:
Amur foxtail [Alopecurus aequalis Sobol] (field is collected seed and preserved).
Chickweed [Stellaria media (Linn.) Cyr] (field is collected seed and preserved).
Test apparatus:
Controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
The purity that first takes certain mass is 90% Monosulfuron, the former medicine of 95% clodinafop-propargyl, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively single dose mother liquor, according to the object that is mixed, serial proportioning be set, each proportioning arranges 5～7 concentration gradients.According to single dose herbicide spectrum, select representative susceptible weeds seed, be cultured to 2 leaf 1 hearts standby.After selecting the weeds cauline leaf of numbering to process, be placed in illumination box incubated at room temperature 20 days, calculate control efficiency (fresh weight preventive effect or strain preventive effect), then with method of least squares calculate suppress in dense EC
50(95% confidence limit), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100.
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] * 100.
Measurement result show (in Table 1 and table 2), monosulfmeturon and clodinafop-propargyl, between mixed ratio 1:5～5:1, have obvious synergy or summation action.The mixed ratio of clodinafop-propargyl and monosulfmeturon is when 1:2, and obvious to the preventive effect synergistic effect of amur foxtail, co-toxicity coefficient reaches 151.20.The mixed ratio of monosulfmeturon and clodinafop-propargyl is when 4:1, and obvious to the preventive effect synergistic effect of chickweed, co-toxicity coefficient reaches 156.49.
Table 1, different proportioning monosulfmeturon and clodinafop-propargyl are measured the synergy of amur foxtail.
Table 2, different proportioning monosulfmeturon and clodinafop-propargyl are measured the synergy of chickweed.
Embodiment
The present invention describes by following specific embodiment, but the invention is not restricted to following specific embodiment.In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
FORMULATION EXAMPLE one (30% monosulfmeturon clodinafop-propargyl wetting powder).
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make to mix and make 30% monosulfmeturon clodinafop-propargyl wetting powder.
FORMULATION EXAMPLE two (30% monosulfmeturon clodinafop-propargyl dispersibles oil-suspending agent).
Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become to even oil phase; Under high-speed stirred, mixing makes 30% monosulfmeturon clodinafop-propargyl and dispersibles oil-suspending agent.
FORMULATION EXAMPLE three (25% monosulfmeturon clodinafop-propargyl suspending agent).
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 25% monosulfmeturon clodinafop-propargyl suspending agent.
FORMULATION EXAMPLE four (15% monosulfmeturon clodinafop-propargyl water dispersible granules).
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 15% monosulfmeturon clodinafop-propargyl water-dispersible granules in proportion.
Field efficacy embodiment mono-: the test of pesticide effectiveness of preventing and kill off wheat paddock grass family and broad leaved weed.
Reagent agent and dispenser dosage:
(1) 30% monosulfmeturon clodinafop-propargyl wetting powder (20% monosulfmeturon 10% clodinafop-propargyl), 11 grams, preparation (1#) for mu.
(2) 30% monosulfmeturon clodinafop-propargyls dispersible oil-suspending agent (10% monosulfmeturon 20% clodinafop-propargyl), 7 grams, preparation (2#) for mu.
(3) 25% monosulfmeturon clodinafop-propargyl suspending agents (5% monosulfmeturon 20% clodinafop-propargyl), 5 grams, preparation (3#) for mu.
(4) 15% monosulfmeturon clodinafop-propargyl water dispersible granules (5% monosulfmeturon 10% clodinafop-propargyl), 8 grams, preparation (4#) for mu.
(5) 10% monosulfmeturon wetting powders, 4 grams, preparation (5#) for mu.
(6) 15% clodinafop-propargyl wetting powders, 4 grams, preparation (6#) for mu.
Dispenser period: the weeds 2-4 leaf phase, be watered rear cauline leaf spraying.
Prevent and kill off object: amur foxtail, green foxtail, chickweed, clearvers.
Result of the test is in Table 3.From table 3 result of the test, can find out: Herbicidal combinations of the present invention reaches more than 92.1% the average preventive effect of wheat paddock grass family and broad leaved weed.Herbicidal combinations of the present invention is significantly better than the single dose of contrast, and synergistic effect is remarkable, and quick-acting and lasting period are obviously better than single dose.
Table 3, prevent and kill off wheat paddock grass family and broad leaved weed field control effectiveness test result.
Claims (3)
1. a monosulfmeturon and clodinafop-propargyl Herbicidal combinations, it is characterized in that: active ingredient is monosulfmeturon and clodinafop-propargyl, all the other are insecticides adjuvant, the ratio of quality and the number of copies of monosulfmeturon and clodinafop-propargyl is 1:5～5:1, and monosulfmeturon and the clodinafop-propargyl gross mass mark percentage composition in herbicidal composition is 5%～60%.
2. monosulfmeturon according to claim 1 and clodinafop-propargyl Herbicidal combinations, is characterized in that: its formulation is to dispersible a kind of in oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
3. the monosulfmeturon described in 1 and clodinafop-propargyl Herbicidal combinations as requested, is characterized in that: be applicable to prevent and kill off wheat paddock grass family and broad leaved weed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104904735A (en) * | 2015-06-08 | 2015-09-16 | 山东滨农科技有限公司 | Pinoxaden containing herbicide composition and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1413462A (en) * | 2001-10-25 | 2003-04-30 | 广西金燕子农药有限公司 | Herbicide composition containing monosulfmeturon |
| CN101313677A (en) * | 2008-06-18 | 2008-12-03 | 安徽华星化工股份有限公司 | Composition for preventing and eliminating malignancy rank grass in cornfield |
| CN101455201A (en) * | 2009-01-14 | 2009-06-17 | 安徽华星化工股份有限公司 | Composition for controlling broad leaved weed in wheat field |
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2013
- 2013-10-30 CN CN201310530819.4A patent/CN103636645A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1413462A (en) * | 2001-10-25 | 2003-04-30 | 广西金燕子农药有限公司 | Herbicide composition containing monosulfmeturon |
| CN101313677A (en) * | 2008-06-18 | 2008-12-03 | 安徽华星化工股份有限公司 | Composition for preventing and eliminating malignancy rank grass in cornfield |
| CN101455201A (en) * | 2009-01-14 | 2009-06-17 | 安徽华星化工股份有限公司 | Composition for controlling broad leaved weed in wheat field |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104904735A (en) * | 2015-06-08 | 2015-09-16 | 山东滨农科技有限公司 | Pinoxaden containing herbicide composition and application thereof |
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Application publication date: 20140319 |
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