CN104904728A - Pesticide combination containing flufenacet and pendimethalin and appliance thereof - Google Patents
Pesticide combination containing flufenacet and pendimethalin and appliance thereof Download PDFInfo
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- CN104904728A CN104904728A CN201510391390.4A CN201510391390A CN104904728A CN 104904728 A CN104904728 A CN 104904728A CN 201510391390 A CN201510391390 A CN 201510391390A CN 104904728 A CN104904728 A CN 104904728A
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- pendimethalin
- flufenacet
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Abstract
The invention discloses a pesticide combination containing flufenacet and pendimethalin and an appliance thereof, wherein active ingredients of the pesticide combination are the flufenacet and the pendimethalin, the quality radio of the flufenacet and the pendimethalin is 2-100:5-100. The pesticide combination containing the flufenacet and the pendimethalin obviously shows obvious synergistic effects in the proportion range, reduces dosage, reduces use times, reduce use cost, reduces adverse effect to ecological environment, enlarges a weed control spectrum, solves a lot of weed problems at one time, also makes up defects and limitations when using a single dosage, prolongs service life, has important significance in comprehensive treatment of weed resistance, is rapid to play pesticide effect, long in lasting period and low in use cost, and can be used to prevent wheat paddock gramineae weeds and broadleaf weeds.
Description
Technical field
The invention belongs to technical field of pesticide, being specifically related to a kind of composition pesticide containing flufenacet and pendimethalin for preventing and kill off wheat paddock grassy weed and broad leaved weed.
Background technology
The use of chemical herbicide is one of important symbol of agricultural modernization.In recent years, the sales volume of weed killer herbicide increases year by year, and the proportion accounting for agricultural chemicals sales volume increases year by year, uses area and expands year by year.Wheat, as the second largest cereal crops of China, has critical role in the world.But serious crop smothering problem governs high yield, the stable yields of wheat.At present, wheat weeds chemical control is still treated to master with aryloxyphenoxypropionate class and sulfonylurea herbicide cauline leaf, there is the problems such as cost is high, drug effect is unstable, benefit is not obvious, phytotoxicity accident takes place frequently.Meanwhile, the long-term use continuously of single herbicide also causes wheatland resistant weed to spread rapidly, the Wang grass of especially anti-aryloxyphenoxypropionate class, the clearvers of Alopecurus and anti-sulfonylurea herbicide, shepherd's purse, that the harm of ox chickweed increases the weight of trend is obvious, has become to restrict one of key factor of rice stubble wheatland wheat safety in production.Therefore, exploratory development wheat paddock safety, highy potent herbicide seem particularly important.
Flufenacet, chemical name: 4 '-fluoro-N-isopropyl-2-(5-Trifluoromethyl-1,3,4-thiadiazoles-2-base oxygen) antifebrin, belongs to aryloxyl acetamide type compound.Play a role mainly through T suppression cell division, early stage weeding before flufenacet can be widely used in the bud of annual gramineous weed and broad leaved weed, after bud.
Pendimethalin, chemical name: N-1-(ethyl propyl)-2,6-dinitro-3,4-dimethylaniline, belongs to dinitroaniline herbicide.By absorbing medicament at the weeds young shoot sprouted, entering the medicament in plant corpus and tubulin binding, suppressing the mitosis of plant cell, thus cause weeds dead.The pendimethalin lasting period is long, using method is flexible, effectively can prevent and kill off annual gramineous weed and part broad leaved weed.
Summary of the invention
Goal of the invention: farmland weed is developed immunity to drugs the poor problem of problem, single use control efficiency in prior art, the object of this invention is to provide a kind of composition pesticide containing flufenacet and pendimethalin, make it have efficient, wide spectrum, environmentally friendly, be beneficial to the features such as the weeds of wheat comprehensive regulation.Another object of the present invention is to provide a kind of above-mentioned application containing the composition pesticide of flufenacet and pendimethalin.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
Contain a composition pesticide for flufenacet and pendimethalin, active ingredient is flufenacet and pendimethalin, and the mass ratio of flufenacet and pendimethalin is 2-100: 5-100.
The preferred mass ratio of flufenacet and pendimethalin is 8: 50,8: 75,10: 60,12: 70 and 15: 90.
Contain a pesticidal preparations for flufenacet and pendimethalin, described preparation becomes agricultural chemicals on acceptable any one formulation with the composition pesticide of pendimethalin with the acceptable auxiliaries of field of pesticide preparation by containing flufenacet.
The formulation of described pesticidal preparations is wetting powder, water dispersible granules, suspending agent or oil-suspending agent.
In described pesticidal preparations, two kinds of herbicidal active components account for the 1-90% of pesticidal preparations gross weight.
Described auxiliary material is selected from wetting agent, dispersant, spreader-sticker, stabilizing agent, bleeding agent, thickener, antifreezing agent, defoamer, filler, solvent; Wherein, described wetting agent is one or more among neopelex, calcium dodecyl benzene sulfonate, lauryl sodium sulfate, lignosulfonates, alkyl phenol formaldehyde resin polyoxyethylene ether, aliphatic alcohol sulfate, phenethyl phenol polyethenoxy ether, polyoxyethylene nonylphenol ether etc.; Described dispersant be lignosulfonates, alkylbenzenesulfonate, alkylphenol polyoxyethylene, polyoxyethylene nonylphenol ether, alkyl ethyl sulfonate, alkylnaphthalene sulfonate formaldehyde condensation products and polycarboxylic acid salt one or more; Described stabilizing agent is that epoxidized vegetable oil is as one or more in epoxidised soybean oil, epoxidized linseed; Described spreader-sticker is one or more in polyvinyl alcohol, alkyl diphenyl ether and sodium sulfonate, poly-trisiloxanes, triethanolamine oleate; Described solvent is one or more in soybean oil, methyl oleate, white oil, turpentine oil methyl naphthalene higher aliphatic hydrocarbon ils; Described filler is one or more in white carbon, corn starch, kaolin, diatomite, sodium sulphate, ammonium sulfate.
The described composition pesticide containing flufenacet and pendimethalin is preventing and treating the application in the weeds of wheat such as grassy weed, broad leaved weed.When preventing and treating weeds of wheat, use to the weeds 2-3 leaf phase before seedling after Wheat Sowing.
The described pesticidal preparations containing flufenacet and pendimethalin is preventing and treating the application in the weeds of wheat such as grassy weed, broad leaved weed.When preventing and treating grassy weed, broad leaved weed, use to the weeds 2-3 leaf phase before seedling after Wheat Sowing.
The described production technology containing the various application forms of the composition pesticide of flufenacet and pendimethalin all belongs to existing known technology.
Composition pesticide and the pesticidal preparations thereof containing flufenacet and pendimethalin provided by the invention, usually adopts pesticide-clay mixture, poison method that is fertile or spraying to use, also can adopt other operation techniques agriculturally applied as required.
Beneficial effect: compared with prior art, the composition pesticide containing flufenacet and pendimethalin of the present invention, tool has the following advantages:
1) composition pesticide containing flufenacet and pendimethalin of the present invention, obvious synergistic effect is shown in certain ratio range, the control efficiency of composition is significantly improved than single dose, reduce the using dosage of agricultural chemicals, decrease times for spraying, reduce drug cost, decrease the adverse effect of agricultural chemicals to ecotope.
2) composition pesticide containing flufenacet and pendimethalin of the present invention, the combination of two kinds of active ingredients, improves preventive effect, reduces consumption, and a drug had both solved various weed problem, compensate for the defect and limitation that use single dose.
3) composition pesticide containing flufenacet and pendimethalin of the present invention, both are mixed can effectively prevent and kill off grassy weed and broad leaved weed, the weeds such as Dui Kang Wang grass, Alopecurus are effective, can extend the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4) composition pesticide containing flufenacet and pendimethalin of the present invention, drug effect plays rapidly, and the lasting period is long, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Specific embodiments
Below in conjunction with specific embodiment, the present invention is further illustrated.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as the restriction to scope of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
In following examples, unless otherwise indicated, all percentage is all weight percentage.
Embodiment 1:20% flufenacet pendimethalin oil-suspending agent
Each component containing the composition pesticide of flufenacet and pendimethalin is: flufenacet 4%, pendimethalin 16%, phenethyl phenol APEO 5%, sodium lignin sulfonate 8%, epoxidized soybean oil 5%, organobentonite 5%, methyl oleate to 100%.
After flufenacet is mixed with filling adsorption, again other above-mentioned materials (except organobentonite) are joined in reactor mixer together, stir, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material, putting into high-shear emulsifying still together with the organobentonite dissolved in advance, namely can be made into 20% flufenacet pendimethalin oil-suspending agent after emulsification.
Embodiment 2:25% flufenacet pendimethalin suspension
Each component containing the composition pesticide of flufenacet and pendimethalin is: flufenacet 6%, pendimethalin 19%, phenethyl phenol APEO 5%, sodium lignin sulfonate 8%, ethylene glycol 5%, aluminium-magnesium silicate 2%, defoamer 0.5%, preservative 0.1%, xanthans 0.1%, water to 100%.
After flufenacet is mixed with filling adsorption, again other above-mentioned materials (except xanthans) are joined in reactor mixer together, stir, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material, putting into high-shear emulsifying still together with the xanthans dissolved in advance, namely can be made into 25% flufenacet pendimethalin suspension after emulsification.
Embodiment 3:45% flufenacet pendimethalin wetting powder
Each component containing the composition pesticide of flufenacet and pendimethalin is: flufenacet 10%, pendimethalin 35%, lauryl sodium sulfate 2%, sodium butylnaphthalenesulfonate 3%, calcium lignosulfonate 5%, white carbon 5%, kaolin to 100%.
After flufenacet filling adsorption is mixed, add in cone-type mixer together with other above-mentioned material and mix, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98% is by 325 mesh standard sieves i.e. obtained 45% flufenacet pendimethalin wetting powder.
Embodiment 4:75% flufenacet pendimethalin water dispersible granules
Each component containing the composition pesticide of flufenacet and pendimethalin is: flufenacet 25%, pendimethalin 50%, lauryl sodium sulfate 4%, metal carboxylate 5%, urea 10%, adds kaolin to 100%.
After flufenacet is mixed with filling adsorption; add in cone-type mixer together with other above-mentioned material and mix; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 325 mesh standard sieves; add in kneader and be kneaded into plasticity material, finally this material is put into Squeezinggranulator extruder grain, through dry, screening i.e. obtained 75% flufenacet pendimethalin water dispersible granules after granulation.
Embodiment 5:30% flufenacet pendimethalin oil-suspending agent
Each component containing the composition pesticide of flufenacet and pendimethalin is: flufenacet 12%, pendimethalin 18%, lauryl sodium sulfate 2%, sodium butylnaphthalenesulfonate 3%, calcium lignosulfonate 5%, white carbon 5%, kaolin to 100%.
After flufenacet is mixed with filling adsorption, again other above-mentioned materials (except organobentonite) are joined in reactor mixer together, stir, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material, putting into high-shear emulsifying still together with the organobentonite dissolved in advance, namely can be made into 30% flufenacet pendimethalin oil-suspending agent after emulsification.
Embodiment 6: flufenacet and the screening of pendimethalin optimum proportioning
In order to understand flufenacet and pendimethalin mixture further to the synergy of weeds, the present inventor has carried out formulation screening test to flufenacet and pendimethalin mixture.
Test material: amur foxtail (AIopecurus aequalis Sobo.), chickweed (Stellaria media (L.) Cyr.), in May, 2014 picks up from experimental field, Jiangsu Province Agriculture Science Institute, adopt natural air drying under rear room temperature condition, load paper bag, be placed in 4 DEG C ± 0.5 Refrigerator store.
Test apparatus: PWT-510 type spray tower, plum Teller AB135-S electronic balance, volumetric flask, triangular flask, beaker, graduated cylinder, polypots, pipette, chi, scissors etc.
Test method: the flufenacet and the former medicine of pendimethalin that first take certain mass, add the Tween 80 aqueous solution dilution that methyl alcohol fully dissolves rear use 0.1%, be mixed with single dose mother liquor, arrange serial proportioning according to mixture object, it is stand-by that each proportioning arranges 5-7 concentration gradient.Polypots (15cm × 11cm × 7cm) is filled air-dry fine earth, in infiltrating irrigation mode bottom polypots, makes soil completely moistening.Soil be horse liver soil, pH6.7, the content of organic matter 1.6%, air-dry sieve after for subsequent use.Each polypots broadcasts amur foxtail 20, chickweed 20 respectively, and broadcast rear fine earth and cover, thickness is about 0.2cm.Be cultured to the weeds 2-3 leaf phase in greenhouse by solar heat, cauline leaf spraying process is watered 30kg/667m
2.(precision spraying area is 0.2m to the spraying of PWT-510 type spray tower quantification
2, spraying liquid 10ml, spray value is 500L/hm
2, atomisation pressure is 0.5kpa).After spray medicine after liquid natural air drying on plastic bowl, be placed in greenhouse by solar heat and cultivate, keep the skin wet every day maintenance ground moistening.
The growing state of seedling after the emerging and emerge of routine observation amur foxtail and chickweed after medicine.30 days investigation amur foxtails and chickweed overground part fresh weight after medicine, calculate fresh weight inhibition namely to the preventive effect of target weeds.Adopt DPS data handling system to obtain the virulence regression equation of single dose flufenacet, pendimethalin and 5 two yuan of mixed agents, calculate ED
50value and 95% confidence limit.Co-toxicity coefficient is calculated by the abundant method of Sun Yun.Co-toxicity coefficient is greater than 120 and is expressed as synergistic effect, is less than 80 and is expressed as antagonism, be expressed as summation action between 80 ~ 120.
Result of the test: medicine post processing is observed for 20 days, flufenacet and pendimethalin use rear amur foxtail in 2-100: 5-100 ratio mixture and the jaundice of chickweed partial blade is extremely withered, the inhibitory action of amur foxtail and chickweed is risen with the increase of drug concentration, to amur foxtail and chickweed, there is very high biologically active.
After medicine 30 days, flufenacet and pendimethalin 9 two yuan of mixtures combinations had obvious inhibitory action to the fresh weight of amur foxtail.In 9 proportionings, the co-toxicity coefficient of 2: 5,2: 100,8: 50,8: 75,10: 60,12: 70,15: 90,100: 5 and 100: 100 proportionings is respectively 185.5752,152.4426,169.4141,191.2710,161.7981,193.0814,163.9053,154.7338 and 172.7751, co-toxicity coefficient is all greater than 120, shows as synergistic effect (table 1).
The synergy of table 1 flufenacet-pendimethalin mixture amur foxtail fresh weight
Flufenacet and pendimethalin 5 two yuan of mixtures combinations also have obvious inhibitory action to the fresh weight of chickweed, in 9 proportionings, the co-toxicity coefficient of 2: 5,2: 100,8: 50,8: 75,10: 60,12: 70,15: 90,100: 5 and 100: 100 proportionings is respectively 182.5556,185.5244,155.3331,170.0182,184.2246,196.1182,152.0521,162.8350 and 166.4378, co-toxicity coefficient is all greater than 120, shows as synergistic effect (table 2).
The synergy of table 2 flufenacet-pendimethalin mixture chickweed fresh weight
Flufenacet has good inhibitory action to wheat paddock grass family and broad leaved weed, and pendimethalin has preferably control effects to wheat grassy weed and part broad leaved weed, and both mixtures can prevent and kill off the annual multiple weeds of wheat simultaneously.Flufenacet and pendimethalin, in 2-100: 5-100 ratio mixture, show as synergistic effect.
Embodiment 7 field control effectiveness test
Reagent agent: select mixed herbicide prepared in embodiment 1 ~ 4.
Contrast medicament: 25% flufenacet suspending agent (commercial)
33% pendimethalin missible oil (commercial)
If artificial weeding and clear water contrast
Using method: adopt spray-on process.
Spraying time: sowing wheat on November 3rd, 2014 (peaceful wheat No. 13), in weeds 2-3 leaf phase dispenser.
Respondent and method: amur foxtail, chickweed, after after medicine, 15d investigates the fresh weight of weeds and medicine, 30d investigates fresh weight and the plant height of wheat.
Test results and analysis are respectively in table 3 and table 4.
Table 3 field control effectiveness test result (after medicine 15d)
As can be seen from Table 3, the present invention has obvious effect to wheat paddock amur foxtail and chickweed, and preventive effect higher than single dose preventive effect, and has good quick-acting and lasting effect; Find out that the present invention is good to Safe to wheat from table 4 kind.
30 days Plant Height in Wheats and fresh weight after table 4 medicine.
Embodiment 8
With reference to the method for embodiment 7, the mixed herbicide obtained to embodiment 5-6 carries out field control effectiveness test, confirms: each mixed herbicide has obvious synergistic effect, all has significant preventive effect to weeds of wheat, Be very effective is better than single dose to be made, and the lasting period is long.
Claims (10)
1. contain a composition pesticide for flufenacet and pendimethalin, it is characterized in that: active component is flufenacet and pendimethalin, the mass ratio of flufenacet and pendimethalin is 2-100: 5-100.
2. contain a pesticidal preparations for flufenacet and pendimethalin, it is characterized in that: described preparation becomes agricultural chemicals on acceptable any one formulation with the composition pesticide of pendimethalin with the acceptable auxiliaries of field of pesticide preparation containing flufenacet by according to claim 1.
3. the pesticidal preparations containing flufenacet and pendimethalin according to claim 2, is characterized in that: the formulation of described pesticidal preparations is wetting powder, water dispersible granules, suspending agent, microemulsion, finish, suspension emulsion, missible oil, water dispersible granules, aqueous emulsion or oil-suspending agent.
4. the pesticidal preparations containing flufenacet and pendimethalin according to claim 2, is characterized in that: in described preparation, active ingredient accounts for the 1-90% of weight of formulation.
5. the pesticidal preparations containing flufenacet and pendimethalin according to claim 2, is characterized in that: described auxiliary material is selected from wetting agent, dispersant, spreader-sticker, stabilizing agent, bleeding agent, thickener, antifreezing agent, defoamer, filler, solvent; Wherein, described wetting agent is one or more among neopelex, calcium dodecyl benzene sulfonate, lauryl sodium sulfate, lignosulfonates, alkyl phenol formaldehyde resin polyoxyethylene ether, aliphatic alcohol sulfate, phenethyl phenol polyethenoxy ether, polyoxyethylene nonylphenol ether etc.; Described dispersant be lignosulfonates, alkylbenzenesulfonate, alkylphenol polyoxyethylene, polyoxyethylene nonylphenol ether, alkyl ethyl sulfonate, alkylnaphthalene sulfonate formaldehyde condensation products and polycarboxylic acid salt one or more; Described stabilizing agent is that epoxidized vegetable oil is as one or more in epoxidised soybean oil, epoxidized linseed; Described spreader-sticker is one or more in polyvinyl alcohol, alkyl diphenyl ether and sodium sulfonate, poly-trisiloxanes, triethanolamine oleate; Described solvent is one or more in soybean oil, methyl oleate, white oil, turpentine oil methyl naphthalene higher aliphatic hydrocarbon ils; Described filler is one or more in white carbon, corn starch, kaolin, diatomite, sodium sulphate, ammonium sulfate.
6. the composition pesticide containing flufenacet and pendimethalin according to claim 1 is preventing and treating the application in the wheat weeds such as grassy weed, broad leaved weed.
7. application according to claim 6, is characterized in that: when preventing and treating the weeds of wheat such as grassy weed, broad leaved weed, uses to the weeds 2-3 leaf phase after Wheat Sowing before seedling.
8. the pesticidal preparations containing flufenacet and pendimethalin described in any one of claim 2-5 is preventing and treating the application in the weeds of wheat such as grassy weed, broad leaved weed.
9. application according to claim 8, is characterized in that: when preventing and treating grassy weed, broad leaved weed, uses to the weeds 2-3 leaf phase after Wheat Sowing before seedling.
10. the composition pesticide containing flufenacet and pendimethalin according to claim 1, is characterized in that: the mass ratio of described flufenacet and pendimethalin is 8: 50,8: 75,10: 60,12: 70 and 15: 90.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027774A (en) * | 2017-06-12 | 2017-08-11 | 南京高正农用化工有限公司 | A kind of ternary weeding composition containing Pendimethalin |
| CN110463713A (en) * | 2018-06-14 | 2019-11-19 | 江苏省农业科学院 | A kind of compound herbicide that preventing and kill off wheat paddock resistant weed and its application |
| CN110692645A (en) * | 2018-07-10 | 2020-01-17 | 江苏龙灯化学有限公司 | Weeding composition |
| CN111789125A (en) * | 2020-07-03 | 2020-10-20 | 浙江中山化工集团股份有限公司 | Flufenacet-containing wheat field herbicide composition |
-
2015
- 2015-07-02 CN CN201510391390.4A patent/CN104904728A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027774A (en) * | 2017-06-12 | 2017-08-11 | 南京高正农用化工有限公司 | A kind of ternary weeding composition containing Pendimethalin |
| CN110463713A (en) * | 2018-06-14 | 2019-11-19 | 江苏省农业科学院 | A kind of compound herbicide that preventing and kill off wheat paddock resistant weed and its application |
| CN110463713B (en) * | 2018-06-14 | 2021-04-09 | 江苏省农业科学院 | Composite herbicide for preventing and removing resistant weeds in wheat fields and application thereof |
| CN110692645A (en) * | 2018-07-10 | 2020-01-17 | 江苏龙灯化学有限公司 | Weeding composition |
| CN111789125A (en) * | 2020-07-03 | 2020-10-20 | 浙江中山化工集团股份有限公司 | Flufenacet-containing wheat field herbicide composition |
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