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Encapsulated pesticide composition

The technology of a pesticide composition and a microcapsule is applied in the field of herbicidal compositions with improved performance, which can solve the problems of low utilization rate of drug efficacy and the like, and achieve the advantages of improving the safety of crops, reducing labor costs, and improving the utilization rate of active ingredients. Effect

Inactive Publication Date: 2016-05-04
JIANGSU HUIFENG BIO AGRI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to effectively solve the problem that trifluralin is decomposed by light when it is applied, resulting in low utilization rate of the drug effect. The combination of trifluralin can solve the resistance problem caused by long-term single administration of trifluralin, delay the occurrence of trifluralin resistance, improve the physical and chemical stability of trifluralin, improve the utilization rate of active ingredients, and prolong the duration of drug effect. Improve crop safety

Method used

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  • Encapsulated pesticide composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 155

[0038] Example 155% trifluralin pendimethalin microcapsule suspension (active ingredient A:active ingredient B=45:10)

[0039] Add 45% of the active ingredients trifluralin and 10% of pendimethalin into 12% solvent turpentine vegetable oil and stir evenly, then add 1.8% of stabilizer triphenyl phosphite and 2% of emulsifier polyoxyethylene castor oil, Add 1.5% glyceryl lactate as initiator, add 10% vesicle-forming monomer toluene diisocyanate and stir evenly to obtain an oil phase; mix 2.5% dispersant acrylic acid-acrylate copolymer with 2% antifreeze propylene glycol, 0.3% preservative sodium benzoate, Thickener Xanthan Gum 1.8% is added to water (water up to 100%) and stirred evenly to obtain the water phase; preheat the oil and water to 45°C, then pour the oil phase into the water phase and start high-speed emulsification until a stable The emulsion was kept at temperature for 4 hours, and a 50% trifluralin pendimethalin microcapsule suspension (active ingredient A:active i...

Embodiment 255

[0040] Example 255% trifluralin pendimethalin microcapsule suspension (active ingredient A:active ingredient B=10:45)

[0041] Add 10% of the active ingredients trifluralin and 45% of pendimethalin into the solvent methyl ester soybean oil 13% and stir evenly, then add the stabilizer epoxy soybean oil 2%, emulsifier fatty alcohol polyoxyethylene ether 1.5% , initiator 1-octyn-3-ol 0.8%, add vesicle-forming monomer toluene diisocyanate 11% and stir evenly to obtain an oil phase; dispersant polymerized carboxylic acid sodium salt 2% and antifreeze agent ethylene glycol 2% 1.8% of the preservative Kaison and 0.8% of the thickener xanthan gum are added to water (the water is supplemented to 100%) and stirred evenly to obtain the water phase. Preheat the oil and water to 40°C, then pour the oil phase into the water phase and turn on high-speed emulsification to obtain a stable emulsion, keep the temperature for 6 hours, and use the interfacial polymerization method to obtain a micr...

Embodiment 331

[0042] Example 331% Trifluralin · Pendimethalin microcapsule suspension (active ingredient A:active ingredient B=30:1)

[0043] Add 30% of the active ingredients trifluralin and 1% of pendimethalin into the solvent 15% turpentine vegetable oil and stir evenly, then add the emulsifier polyoxyethylene lauryl ether 6%, and the initiator fatty acid glyceride 4% and stir evenly to obtain Oil phase; 4.5% of antifreeze agent glycerin, 1% of potassium dihydrogen phosphate as a stabilizer, 14% of formaldehyde-urea prepolymer of encapsulating prepolymer are added to water (water is supplemented to 100g) and stirred to obtain an aqueous phase; Preheat the oil and water to 60°C, then pour the oil phase into the water phase and turn on high-speed emulsification, wait until the emulsion is stable, add dilute hydrochloric acid in batches to adjust the pH=2.5 to undergo polycondensation reaction, keep the temperature for 4 hours, and then add the dispersant Sodium lignosulfonate 3%, thickener...

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Abstract

The invention discloses an encapsulated pesticide composition. Effective components of the encapsulated pesticide composition comprise A and B, wherein A is trifuralin, B is pendimetalin, a weight ratio of A to B is 1-45:45-1, the capsule wall of the encapsulated pesticide composition at least contains the effective component trifuralin, and the pesticide composition contains 2-60 mass% of the effective components, and the balance of assistants. Pesticide effect test shows that the composition can effectively solve the problems of light decomposition and low pesticide effect utilization rate of routine dosages of trifuralin, and realizes no artificial or mechanical overturning of covering soil after being sprayed, so the labor force cost is reduced, and the pesticide effect lasting period is prolonged. The composition has the advantages of substantial synergism, enlarged weed control spectrum and improved safety to crops.

Description

technical field [0001] The present invention belongs to the field of agricultural plant protection, and in particular relates to a herbicidal composition with improved properties. Background technique [0002] Trifluralin is a selective pre-emergent dinitroaniline herbicide. Because trifluralin is easy to volatilize, easy to photodecompose, extremely small in water solubility, difficult to move in the soil layer, long-lasting, etc., trifluralin is often used in pre-emergence soil treatment, and it mainly passes through the weed coleoptile and It works through hypocotyl absorption and is ineffective against weeds that have been unearthed, but it is also effective against grasses and some broad-leaved weeds with small seeds. Trifluralin is mainly used to control barnyardgrass, crabgrass, goosegrass, stone grass sorghum, daughter of a thousand gold, teff, bluegrass, brome, hard grass, clubhead grass, amaranth, quinoa, purslane, Annual grasses and some broad-leaved weeds such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/18A01N25/28A01N25/04A01N25/14A01P13/00
Inventor 顾国梁仲汉根季红进张洁邰少杰
Owner JIANGSU HUIFENG BIO AGRI CO LTD
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