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Weeding composition

A herbicidal composition and a technology for cyhalofop-butyl are applied in the field of agricultural chemistry, can solve the problems of difficult to produce obvious effects, complex weeds in farmland, difficult green pesticides, etc., and achieve excellent control effect, weed killing Broad spectrum, delaying weed resistance

Inactive Publication Date: 2018-06-29
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Farmland weeds are complex and diverse, and the application of chemical agents is one of the most effective chemical means to control agricultural weeds; it is a good solution to control agricultural weeds with new compounds without cross-resistance; however, transnational Although the company has strong technical reserves and experience in new product development, there is an unavoidable fact that it is becoming more and more difficult to develop new formulations, efficient and environmentally friendly green pesticides in a timely manner, and the input-output ratio is also increasing. , the R&D cycle continues to grow, super weeds are becoming more and more serious, the speed of R&D is hard to match the speed of weed resistance, and this trend cannot be reversed
Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to achieve obvious effects in actual operation.

Method used

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  • Weeding composition

Examples

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Effect test

Embodiment 1

[0022] In order to control weeds in paddy fields, the inventors used the active ingredients of cyhalofop-methyl, saponin and quinclorac to conduct synergistic research on the mutual compounding. The specific method is: the test targets are Eragrostis japonica (Thunb.). The original drug is prepared into the required test agent, and the test method refers to the "People's Republic of China Agricultural Industry Standard NY / T1155.7-2006 Indoor Bioassay Test Guidelines for Pesticides and Herbicides Part 7: Determination of Combined Effects of Mixing". Firstly, the single agent and each mixed agent are set to 5-7 different concentrations. Set water control, repeated 4 times. Adopt post-emergence stem-leaf spraying method, prepare the weeds for testing in advance, wait for the weeds 3 leaf 1 heart stage for standby, use the spray tower (Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture, 3WPSH-500D, spraying pressure 3.0 kg / cm 3 ) evenly sprayed on the weed...

Embodiment 1

[0030] Formulation example 1: 25% cyhalofop-methyl, saponin, quinclorac suspoemulsion (10:5:10)

[0031] Methazone 10%, 5% sapylphos, 10% quinclorac, 15% C9-10 heavy aromatic solvent oil, 10% N,N-dimethyl caprylamide, castor oil polyoxyethylene ether 3.6 %, 3% of hydroxyl polyoxyethylene block copolymer, mixed to obtain an oil phase for use. 10% fenpyramid, 5% saponin, 10% quinclorac, 1% wetting agent polyoxyethylene polyoxypropylene block polyether, 3.5% dispersing agent phosphatidic ester, thickener xanthan Glue 0.5%, preservative Cathone 0.2%, antifreeze ethylene glycol 5%, defoamer silicone 0.2%, water to make up to 100%. Mix fenpyramid, saponin, quinclorac, wetting agent, dispersant, preservative, antifreeze, and water with a shearing machine at high speed, and then sand them through a sand mill until the material is granulated. Diameter D90<3um, obtain mother liquor, add oily phase, thickener successively in mother liquor high-speed shearing process and continue sheari...

Embodiment 2

[0032] Formulation example 2: 25% cyhalofop-methyl, saponin, quinclorac wettable powder (5:5:15)

[0033]5% cyhalofop, 5% saponin, 15% quinclorac, 7% calcium dodecylbenzene sulfonate, 6% alkyl naphthalene sulfonate, 5% lignosulfonate, hydroxyl poly Oxyethylene block copolymer 2.4%, solvent naphtha S150 10%, white carbon black 7%, filler kaolin to 100%. After completely dissolving cyhalofop-ethyl and saponin in solvent naphtha S150, mix the hydroxyl polyoxyethylene block copolymer evenly, and completely adsorb it with white carbon black for 24 hours. After fully mixing all the components, carry out jet milling to obtain 25% cyanide Fluoxate, saponin, quinclorac wettable powder.

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Abstract

The invention discloses a weeding composition and application thereof. The weeding composition is prepared from the following active ingredients: cyhalofop-butyl, anilofos and quinclorac, and a weightratio of cyhalofop-butyl to anilofos to quinclorac is 10: (1 to 10): (10 to 30). The weeding composition has a synergistic effect and can be used for preventing one-year weeds of the paddy rice field, the effect is apparently better than a single preparation, the herbicide controlling spectrum is enlarged, the use amount of pesticide is reduced, the environmental pollution is alleviated, the drugresistance of the weeds can be retarded, and the weeding composition is a good novel medicine composition for preventing the one-year weeds of the paddy rice field.

Description

technical field [0001] The invention belongs to the field of agrochemicals, and in particular relates to a herbicidal composition aimed at solving the problem of controlling annual weeds in paddy fields. Background technique [0002] Cyhalofop-butyl belongs to the class of aryloxyphenoxypropionic acid herbicides and is a systemic herbicide. It is absorbed by the leaves and leaf sheaths of plants, conducted by phloem, and accumulated in the meristem area of ​​plants. Inhibition of acetyl-CoA carboxylase stops the synthesis of fatty acids, the growth and division of cells cannot be carried out normally, the membrane system and other membrane-containing structures are destroyed, and finally leads to plant death. It is mainly used in paddy fields, and can control grass weeds such as stephenia chinensis and barnyardgrass. [0003] Anilofos is a phosphorothioate herbicide developed by Aventis, which belongs to cell division inhibitors, and anilofos is a systemic conduction select...

Claims

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Application Information

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IPC IPC(8): A01N57/14A01N43/42A01N39/04A01P13/00
CPCA01N39/04A01N43/42A01N57/14
Inventor 张国宾陈丰喜康家树祁月月范伟赠赵昱清丁云泽
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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