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Herbicidal composition containing benzobicyclon, pyrazosulfuron-ethyl and pretilachlor

A bicyclic sulcotrione and herbicidal composition technology, applied in the field of agrochemicals, can solve the problems of weeds prone to drug resistance, narrowing herbicidal spectrum, and environmental pollution, so as to delay the emergence of weed drug resistance and reduce the amount of use , the effect of convenient application

Inactive Publication Date: 2017-06-23
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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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  • Herbicidal composition containing benzobicyclon, pyrazosulfuron-ethyl and pretilachlor
  • Herbicidal composition containing benzobicyclon, pyrazosulfuron-ethyl and pretilachlor
  • Herbicidal composition containing benzobicyclon, pyrazosulfuron-ethyl and pretilachlor

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Bicyclic sulcotrione 2.5%, pyrazosulfuron-methyl 0.25%, pretilachlor 2.5%, sodium a-alkenyl sulfonate (AOS) 1%, sodium lignosulfonate (REAX82P) 4%, glucose 6%, white carbon Black 5%, Kaolin balance. Weigh the pretilachlor crude oil in advance according to the above ratio, absorb it with white carbon black and let it stand for 24 hours, mix the above other ingredients according to the above ratio evenly, and pass through airflow pulverization, so that the average particle size of the material is less than 5 microns, and knead evenly with water, Move to granulation equipment for granulation, and dry at 45°C to obtain 5.25% bicyclic sulcotrione, pyrazosulfuron, and pretilachlor granules (10:1:10).

Embodiment 2

[0033] Bicyclic sulcotrione 6%, pyrazosulfuron-methyl 0.2%, pretilachlor 2%, sodium lauryl sulfate 1%, naphthalenesulfonate dispersant (MORWET D425) 5%, polyethylene glycol 4000 5%, White carbon black 10%, attapulgite balance. Weigh pretilachlor in advance according to the above ratio, absorb it with white carbon black and let it stand for 24 hours, then mix the other ingredients uniformly according to the ratio, and crush them by air flow, so that the average particle size of the material is less than 5 microns, add water and knead evenly, and move to Granulate in granulation equipment, and dry at 45°C to obtain 8.2% bicyclosulfotrione·pyrazosulfuron·pretilachlor granules (30:1:10).

Embodiment 3

[0035] Bicyclic sulcotrione 10%, pyrazosulfuron 2%, pretilachlor 30%, calcium dodecylbenzene sulfonate 8%, sodium lignosulfonate 7%, fatty alcohol polyoxyethylene ether 3%, white charcoal Black 8%, Kaolin balance. After absorbing pretilachlor crude oil and white carbon black according to a certain ratio and letting it stand for 24 hours, mix all the ingredients evenly according to the above ratio, and jet mill to make the average particle size of the material less than 5um. A 21% bicyclic sulcotrione-pyrazosulfuron-methyl-pretilachlor wettable powder (5:1:15) can be obtained.

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Abstract

The invention discloses a herbicidal composition containing benzobicyclon, pyrazosulfuron-ethyl and pretilachlor, relating to the technical field of pesticide compounding. The herbicidal composition is prepared from the following effective components: the benzobicyclon, the pyrazosulfuron-ethyl and the pretilachlor, wherein the weight ratio of the benzobicyclon to the pyrazosulfuron-ethyl to the pretilachlor in the herbicidal composition is (1 to 30) to 1 to (1 to 30); the total weight percentage of the benzobicyclon, the pyrazosulfuron-ethyl and the pretilachlor in the composition is 1 to 80 percent. According to the herbicidal composition disclosed by the invention, a herbicide controlling spectrum can be significantly widened and the overall control effect on weeds in a paddy field is improved; meanwhile, the composition has good safety for rice, and is an excellent novel medicinal combination for controlling annual weeds in the paddy field.

Description

technical field [0001] The invention belongs to the field of agricultural chemistry, and in particular relates to a herbicidal composition containing bicyclic sulcotrione, pyrazosulfuron-methyl and pretilachlor for solving the problem of controlling annual weeds in paddy fields. Background technique [0002] Bicyclic sulcotrione (benzobicylon) belongs to bicyclooctane herbicides, and its mechanism of action is a p-hydroxyphenylpyruvate dioxygenase inhibitor. The compound is safe to rice, and can effectively control barnyard grass, bermudagrass, moshangcai, sagittarius, yujiuhua, flat stalk and other malignant weeds in rice fields. [0003] Pyrazosulfuron-methyl belongs to the sulfonylurea class of highly active systemic selective acetolactate synthase inhibitors. The drug is mainly absorbed by the young shoots, roots, stems and leaves of the plant and conducts rapidly in the plant, inhibiting the biosynthesis of amino acids in the plant, causing the shoots and roots of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N41/10A01N37/22A01P13/00
CPCA01N47/36A01N37/22A01N41/10A01N2300/00
Inventor 陈丰喜王国华祁月月范伟赠
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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