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Ternary combined weeding composition

A herbicidal composition and a technology for the composition are applied in the field of agrochemicals, and can solve the problems that weeds are easy to produce drug resistance, poor control effect of grass weeds, narrow herbicidal spectrum, etc. Excellent herbicidal effect and reduced usage

Inactive Publication Date: 2017-04-26
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is suitable for the control of broad-leaved weeds such as pigtails, field bindweed, shepherd's purse, chickweed, amaranth curly, purslane, and lotus seedlings in paddy fields, and the effect on grasses and sedges is poor.
[0004] 2-methyl-4-chloro(MCPA) isooctyl ester is a phenoxyacetic acid selective hormone-type herbicide, which is easily absorbed by roots and leaves. It is mainly used for controlling a variety of annual and perennial broadleaves in areas such as rice, wheat, peas, and lawns. For weeds, it has a significant effect on Cyperus cyperi, three-edge grass, sausage, bermudagrass, and sagittarius, but it is less effective against gramineous weeds
[0005] Herbicide varieties containing a single active component have defects in weed control to varying degrees, such as weeds are prone to resistance after continuous use, the herbicide spectrum becomes narrower, and environmental pollution is caused.

Method used

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  • Ternary combined weeding composition
  • Ternary combined weeding composition
  • Ternary combined weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Cyhalofop-methyl 20%, 6% isoctyl fluroxypyr, 8% chloroisooctyl 2-methyl-4, 7% calcium dodecylbenzenesulfonate, 3% styrylphenol polyoxyethylene ether, Alkylaryl polyoxyethylene polyoxypropylene ether 4%, polytrisiloxane 5%, methyl oleate 20%, aromatic hydrocarbon S-150 solvent naphtha balance. Mix all the above ingredients in the stated proportions until well mixed. 34% cyanofluorine·chlorofluoro·2-methyl-4-chlorine emulsifiable concentrate (10:3:4) can be obtained.

Embodiment 2

[0024] Cyhalofop-methyl 15%, 3% isoctyl fluroxypyr, 7% chloroisooctyl 2-methyl-4, 7% calcium dodecylbenzenesulfonate, 4% styrylphenol polyoxyethylene ether, Castor oil polyoxyethylene ether 4%, fatty alcohol polyoxyethylene ether 3%, diisooctyl sulfosuccinate 6%, methylnaphthalene high aliphatic hydrocarbon oil 10%, aromatic hydrocarbon S-150 solvent naphtha balance. Mix all the above ingredients in the stated proportions until well mixed. 25% cyanofluorine·chlorofluoro·2-methyl-4-chlorine emulsifiable concentrate (15:3:7) can be obtained.

Embodiment 3

[0026] Cyhalofop-ethyl 10%, 3% isoctyl fluroxypyr, 4% chloroisooctyl 4%, calcium dodecylbenzenesulfonate 5%, castor oil polyoxyethylene ether 4%, polyoxyethylene Ethylene polyoxypropylene block copolymer 3%, silicone defoamer 0.1%, organic bentonite 3%, soybean oil to make up 100%. The above-mentioned ingredients are mixed evenly according to the stated ratio, and the average particle size of the obtained material is less than 5 microns after being ground by a horizontal sand mill. A 17% cyanofluorine·chlorofluoro·2-methyl-4-chlorine dispersible oil suspension (10:3:4) can be obtained.

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Abstract

The invention discloses a ternary combined weeding composition and application thereof and relates to the technical field of combination of pesticides. The ternary combined weeding composition comprises the following effective components of cyhalofop-butyl, fluroxypyr ester and MCPA-isooctyl, the weight ratio of the cyhalofop-butyl, the fluroxypyr ester and the MCPA-isooctyl is (5-15):(1-5):(1-7), and the weight of the cyhalofop-butyl, the fluroxypyr ester and the MCPA-isooctyl accounts for 1%-18% of the total weight of the composition. According to the ternary combined weeding composition, the herbicide controlling spectrum can be remarkably amplified, and the integral preventing and removing effect for the rice field weeds is improved. At the same time, the composition has good safety to the rice and is a very good novel pesticide composition for preventing and removing annual weeds in the rice field.

Description

technical field [0001] The invention belongs to the field of agrochemicals, and in particular relates to a three-component compound herbicide composition aimed at solving the problem of controlling annual weeds in paddy fields. Background technique [0002] Cyhalofop-butyl (Cyhalofop-butyl) belongs to aryloxyphenoxypropionic acid herbicides, the mechanism of action is acetyl-CoA carboxylase inhibitor, which stops the synthesis of fatty acids, and the growth and division of cells cannot be carried out normally, and the membrane system, etc. The lipid-containing structure is destroyed, eventually leading to the death of the plant. It is highly safe to rice, highly effective against A. chinensis, and has certain control effects on young barnyardgrass, but the effect on cyhalofop-resistant biotype Gramineae is not ideal. [0003] Fluroxypyr-meptyl belongs to pyridyloxyacetic acid herbicides, which has systemic conduction effect. When used after emergence, sensitive crops will s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40A01N39/04A01P13/00
CPCA01N43/40A01N39/04
Inventor 陈丰喜祁月月范伟赠许华伟陈涛卓家雄
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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