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Herbicidal composition

A herbicidal composition and a technology for cyhalofop-butyl, applied in the field of agrochemical pesticides, can solve the problems such as the general effect of resistant biological weeds, and achieve the effects of reducing the frequency of medication, convenient application and low cost

Active Publication Date: 2016-01-06
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its active ingredients are cyhalofop-ethyl and isooctyl halopil, which relates to a binary compound composition for controlling weeds in paddy fields, which is analyzed by using the composition effect evaluation method Gowing method. The mixed effect of flufenate and isooctyl fluroxypyr on barnyardgrass, sausage, heterocyperus and stephenia is additive, and there is no synergistic effect. The effect of resistant biotype weeds such as bermudagrass and barnyardgrass is average

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] 20% cyhalofop, 6% isoctyl fluroxypyr, 9% clomazone, 7% calcium dodecylbenzenesulfonate, 3% styrylphenol polyoxyethylene ether, alkyl aromatic Base polyoxyethylene polyoxypropylene ether 4%, polytrisiloxane 5%, methyl oleate 20%, aromatic hydrocarbon S-150 solvent oil balance. Mix all the above-mentioned ingredients evenly according to the stated ratio, and you can get 35% cyanofluorine·chlorofluoro·clomazone emulsifiable concentrate.

Embodiment 2

[0030] Cyhalofop-methyl 17.5%, fluroxypyr isooctyl 2%, clomazone 6%, calcium dodecylbenzenesulfonate 7%, styrylphenol polyoxyethylene ether 4%, castor oil polyoxyethylene 4% oxyethylene ether, 3% fatty alcohol polyoxyethylene ether, 6% diisooctyl sulfosuccinate, 10% methylnaphthalene high-grade aliphatic hydrocarbon oil, and the balance of aromatic hydrocarbon S-150 solvent oil. Mix all the above-mentioned ingredients uniformly according to the stated ratio, and then 25.5% cyanofluorine-chlorofluoro-clomazone emulsifiable concentrate can be prepared.

Embodiment 3

[0032] 35% cyhalofop, 4% isoctyl fluroxypyr, 6% clomazone, 5% calcium dodecylbenzenesulfonate, 4% castor oil polyoxyethylene ether, polyoxyethylene polyoxyethylene Propylene block copolymer 3%, silicone defoamer 0.1%, organic bentonite 3%, soybean oil balance. Mix all the above-mentioned ingredients evenly according to the stated ratio, and grind them with a horizontal sand mill so that the average particle size of the obtained material is less than 5 microns, and then a 45% cyanofluorine·chlorofluoro·clomazone dispersible oil suspension concentrate can be obtained.

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Abstract

The invention discloses an herbicidal composition which comprises the following active components: cyhalofop-butyl, fluroxypyr-mepthyl and clomazone. Weight ratio of cyhalofop-butyl to fluroxypyr-mepthyl to clomazone is (15-35): (4-8): (6-12). Content of cyhalofop-butyl, fluroxypyr-mepthyl and clomazone in the composition is 5-45%. The herbicidal composition has good synergistic effects on resistant biotypes alkalibarnyard grass. In comparison with the above three single components or a composition of the any two components, the herbicidal composition has advantages as follows: weeding performance is enhanced, dosage of pesticide is reduced, environmental pollution is minimized, and weed resistance is delayed. In addition, the herbicidal composition has good rice security and is a novel pharmaceutical composition for controlling annual weed in paddy field.

Description

technical field [0001] The invention belongs to the field of agrochemical pesticides, in particular to a herbicidal composition for annual weeds and resistant biological weeds in rice 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 on A. chinensis, and has a certain control effect on young barnyardgrass, but the effect on cyhalofop-resistant biotype A. chinensis is not ideal. [0003] Fluroxypyr-meptyl is a pyridyloxyacetic acid herbicide with systemic transduction effect. When used after emergence, sensitive crops will show typical hormone herbicide response. It is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01P13/00A01N43/40A01N39/04
Inventor 祁月月范伟赠陈丰喜康家树徐雅飞陈涛卓家雄
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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