Weeding composition containing pyraclonil and pyrazosulfuron-ethyl and application thereof

A herbicidal composition, the technology of pyrazosulfuron-methyl, applied in the field of herbicides and pesticides, can solve the problems of incomplete and effective control of weeds in paddy fields, residual toxicity of current crops or subsequent crops, and no herbicidal composition has been found. , to achieve the effect of improving safety, improving drug efficacy and reducing resistance

Inactive Publication Date: 2017-06-27
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, herbicides in paddy fields are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in paddy fields. Too long effective period, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops
The inventors have found through research that the synergistic compounding of herbicides is an effective measure to expand the weed control spectrum and improve the control effect. So far, no herbicidal composition related to the compounding of pyrazofen-methyl and pyrazosulfuron-methyl has been found.

Method used

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  • Weeding composition containing pyraclonil and pyrazosulfuron-ethyl and application thereof
  • Weeding composition containing pyraclonil and pyrazosulfuron-ethyl and application thereof
  • Weeding composition containing pyraclonil and pyrazosulfuron-ethyl and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: 35% pyrazosulfuron-carbenil emulsifiable concentrate (34:1)

[0027] 34% pyrazosulfuron-methyl, 1% pyraclofenac, 4% alkylphenol polyoxyethylene ether, 15% phenethylphenol polyoxyethylene ether, xylene supplemented to 100%, prepared according to the conventional preparation method The percentage content is 35% emulsifiable concentrate.

Embodiment 2

[0028] Example 2: 30% pyrazosulfuron-difenpyr suspension concentrate (29:1)

[0029] Pyrazosulfuron-methyl 29%, Difenpyr 1%, Sodium Naphthalene Sulfonate Formaldehyde Condensate 6%, Nonylphenol Polyoxyethylene Ether 3%, Magnesium Aluminum Silicate 0.5%, Ethylene Glycol 7%, Phosphoric Acid 2% of tributyl ester, 0.2% of silicone oil, and the balance of water are formulated into a suspension concentrate with a mass percent content of 30% according to a conventional preparation method.

Embodiment 3

[0030] Example 3: 60% pyrazosulfuron-difenpyr water-dispersible granules (59:1)

[0031] Pyrazosulfuron-methyl 59%, Difenpyr 1%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to make up to 100%, according to the conventional preparation method It is prepared as a water-dispersible granule (WDG) with a mass percent content of 60%.

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Abstract

The invention discloses a weeding composition containing pyraclonil and pyrazosulfuron-ethyl and application thereof. The weeding composition takes pyraclonil and pyrazosulfuron-ethyl as main active ingredients, and the mass ratio of pyrazosulfuron-ethyl to pyraclonil is 1:60 to 60:1. The weeding composition can be used for rice field post-seedling weeding, and especially has remarkable effects when used for controlling gramineous and broadleaf weeds in rice fields. Relative to a single chemical pesticide, on the premise of improving pesticide effects, the weeding composition delays weed resistance, has a broad herbicidal spectrum and a long lasting period, and is safe for both rice and post-crop crops.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to the field of herbicides, and specifically relates to a herbicidal composition containing fenpyrax and pyrazosulfuron-methyl and an application thereof. Background technique [0002] pyraclonil. Chemical name: 1-(3-chloro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-2-yl)-5-[methyl(prop-2-ynyl) Amino]pyrazole-4-carbonitrile, the structural formula is: [0003] [0004] Difenpyril is a herbicide for paddy fields, which is a novel structural compound with a pyrazolopyridine ring discovered by German Schilling Company (now Bayer Company). The broad-leaved weeds such as Yinglin, Niu felt, broad-leaved weeds Psyllium sylvestris, Moshangcai, and perennial wild arrowhead mushrooms and water chestnuts have high activity. [0005] Pyrazosulfuron-ethyl (Pyrazosulfuron-ethyl) chemical name 5-(4,6-dimethoxypyrimidinyl-2-carbamoylsulfuron-1-methylpyrazole-4-carboxylic acid (ethyl ester). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/90A01P13/00
CPCA01N47/36A01N43/90A01N2300/00
Inventor 白杰郭崇友杨琴邢刚孙会杰
Owner NANJING HUAZHOU PHARMA
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