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Herbicide composition containing fenpyramid, cyhalofop-ethyl and chlorpyrazosulfuron-methyl

A technology of oxazolam and chlorpyrifosulfuron, applied in the field of pesticides, can solve problems such as no related reports in compounding

Active Publication Date: 2018-06-19
成都科利隆生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There is no relevant report on the compounding of fenpyramid, cyhalofop-ethyl, and chlorpyrazosulfuron-methyl

Method used

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  • Herbicide composition containing fenpyramid, cyhalofop-ethyl and chlorpyrazosulfuron-methyl
  • Herbicide composition containing fenpyramid, cyhalofop-ethyl and chlorpyrazosulfuron-methyl
  • Herbicide composition containing fenpyramid, cyhalofop-ethyl and chlorpyrazosulfuron-methyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Biological Assay Example 1: Indoor Toxicity Tests of Mefenpyramid, Cyhalofop-ethyl, Clorazosulfuron-methyl and their compound Stephania chinensis, and Heterocyperus sinensis.

[0019] According to Colby's formula (for evaluation of the expected action of a particular composition, see S.R. Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide combinations" Weeds 1967, 15, 20-22) as follows:

[0020]

[0021] In the formula:

[0022] A The survival rate or fresh weight residual rate (%) of the target weeds when A is used alone at a certain dose;

[0023] B The survival rate or fresh weight residual rate (%) of the target weeds when a certain dose is used alone;

[0024] C The plant survival rate or fresh weight residual rate (%) of the target weeds when a certain dose is used alone;

[0025] n is the number of mixed herbicide varieties;

[0026] E. 0 It is the theoretical value of the survival rate or fresh weight residual rate (%) of the target w...

Embodiment 1

[0037] Formulation example 1: 20% oxafluzamide·cyhalofop-methyl·chlorpyrazosulfuron-methyl water-dispersible granules.

[0038]

[0039] Add the above materials together into a conical mixer and mix them evenly, then pulverize them through a jet mill, and then mix the pulverized materials through a conical mixer. The fineness of the mixed materials is 96% and pass through a 800-mesh standard sieve, and then put into the kneader Knead into a plastic material, and finally put the material into an extrusion granulator to extrude and granulate. After granulation, it is dried and sieved to obtain 20% fenpyramid, cyhalofop, and clopyrazine Sulfuron-methyl water-dispersible granules.

Embodiment 2

[0040] Formulation example 2: 35% fenpyramid·cyhalofop-methyl·clopyrazosulfuron-methyl wettable powder).

[0041]

[0042] Add the above materials together into a conical mixer and mix them evenly, then pulverize them through a jet mill, and then mix the pulverized materials through a conical mixer. The fineness of the mixed materials is 98% and passes through a 600-mesh standard sieve to obtain 35% Fenoxam, cyhalofop-methyl, and chlorpyrazosulfuron wettable powder.

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Abstract

The present invention relates to a herbicide composition containing mefentrazone, cyhalofop-methyl and chlorpyrazosulfuron-methyl, the active ingredients of which are fenmefen, cyhalofop-methyl and clopyrazosulfuron-methyl, The weight percentage of mefentrazone in the composition is 1% to 20%, the weight percentage of cyhalofop-methyl in the composition is 1% to 30%, and the weight percentage of chlorpyrazosulfuron-methyl in the composition is 1% % to 20%; the herbicidal composition of the present invention has a synergistic effect and is applied to the control of annual weeds in paddy fields. Reduce the risk of weed resistance, reduce environmental pollution, and delay the emergence of weed resistance.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a synergistic responsive herbicidal composition with fenpyramid, cyhalofop-ethyl, and chlorpyrazosulfuron-methyl as active ingredients, and is mainly suitable for controlling annual weeds in paddy fields. Background technique [0002] Metamifop can resist acetyl-CoA carboxylase, stop the synthesis of fatty acid, the growth and division of cells cannot be carried out normally, the membrane system and other lipid-containing structures are destroyed, and finally lead to plant death. Mefenpyramid is often used to control annual grass weeds such as daughters, barnyardgrass, and crabgrass, but it is ineffective against sedges and broad-leaved weeds. [0003] Cyhalofop-buty is the only one among the aryloxyphenoxypropionic acid herbicides that is highly safe to rice. Like other varieties in this category, it is also a systemic conductive herbicide. Absorbed by the leaves...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01P13/00A01N43/76A01N39/04
Inventor 陈佛祥冷忠国张志伟吴泽伟王礼文朱刚
Owner 成都科利隆生化有限公司
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