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Herbicides

A herbicide, carfenazone technology, applied in the field of pesticides, can solve the problems of large product residue, poor suitability, and wide herbicidal spectrum, and achieve the effects of speeding up weeding, reducing dosage and improving the environment.

Inactive Publication Date: 2008-04-09
钱永康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the crop herbicides in use at present, the main herbicides for preventing dicotyledonous weeds are siltaron, chlorotoluron, isoproturon, tribenuron-methyl, and chlorosulfuron-methyl. These herbicides can prevent dicotyledonous weeds in wheat fields, but Some products have a poor herbicidal spectrum, some products have large residues, and some products have high agricultural costs, so they are not targeted and suitable, and new products need to be developed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Methazone 1%, Bensulfuron-methyl 9%; Auxiliary 1: BX: 3%; Auxiliary 2: LS: 4%; Auxiliary 3: 885: 1.5%, and the rest was made up to 100% with diatomaceous earth. into 10% (preferably granules).

Embodiment 2

[0016] 0.5% of mefentrazone, 9.5% of bensulfuron-methyl, 2% of BX as adjuvant 1, 3% of LS as adjuvant 2, and the remaining kaolin was added to 100% to make a 10% wettable powder herbicide.

Embodiment 3

[0018] Methazone 0.8%, Bensulfuron-methyl 10.2%, Pesticide Surfactant: 1. Polyoxyethylene ether 3%; 2. Sulfur gum 2.5%; 3. Diffusion agent N2%; 4. White carbon black 1.5%; 5 1. Add to 100% with deionized water to make 10% suspoemulsion.

[0019] The following table is the drug experiment comparison table of 10% 1 mefentrazone + bensulfuron-methyl wettable powder 10% bensulfuron-methyl wettable powder described in Example 2

[0020]

[0021] The above-mentioned test results show that 10% wettable powder (i.e. the weight ratio of carfentrazone+benzsulfuron-methyl 0.5:9.5 of the present invention) has a strong herbicidal activity, and it is effective against the comprehensive effects of fenugreek, wormwood, and shepherd's purse in wheat fields. The control effect reached 96.56%, obviously better than a single dose of bensulfuron-methyl.

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PUM

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Abstract

The invention relates to herbicide which includes two active components of azole-adizon and benzyl methyl. The components have the weight contents that: azole-adizon is 0.01-15 percent, benzyl methyl is 5-50 percent, general pesticide adjuvant is 1-20 percent, and the rest is fillings. The invention can be mainly used to remove the ruderal for grass family crops, can have obvious spectrum-enlarging and effect-increasing function, and have stronger weeding activity, can kill a plurality of broadleaf ruderal simultaneously, can reduce the dosage and the cost, can amend the environment and improve the food safety, and suitable for the conditions of China.

Description

technical field [0001] The invention relates to a herbicide, in particular to a herbicide prepared from mefentrazone and bensulfuron-methyl, and belongs to the technical field of pesticides. Background technique [0002] Carfentrazone-ethyl, trade name: methazine, chemical name: (RS)-2-chloro-3-[2-chloro-5-(4-difluoromethyl-4,5-dihydro -3-methyl-5-oxy-1,2,4-triazol-1-yl)-4-fluorophenyl]propanoic acid. This product was developed by FMC Corporation of the United States. It is a selective contact herbicide, which is used to control broad-leaved weeds and sedges in wheat, corn, and rice fields. Wounded seedlings (with white spot symptoms), [0003] Bensulfuron-methyl (bensulfuron-methyl), main product names: Nongdesi, Veyron, Honda Qing, Dabaicao, and Daocaoxing. Chemical name: a-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfonyl)-o-toluic acid. Bensulfuron-methyl is a selective systemic herbicide that can diffuse rapidly in water, be absorbed by the roots and leaves of weeds and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00A01N43/653
Inventor 钱永康
Owner 钱永康
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