Synergistic weeding composition containing clopyralid and carfentrazone-ethyl and application thereof

A herbicidal composition, the technology of clopyralid, applied in the field of pesticides, can solve the problems of limited herbicidal spectrum, high water solubility, excessive dosage, etc., and achieve the effect of improving herbicidal activity, reducing the use content and high herbicidal activity

Active Publication Date: 2013-06-05
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pyrentrazone-ethyl can only be used as a treatment agent for stems and leaves. It cannot control unearthed weeds, and its control effect on older weeds is poor. In addition, high doses will cause phytotoxicity to wheat, so when used, Pay special attention to the timing and dosage of medication
[0010] At present, herbicides in wheat

Method used

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  • Synergistic weeding composition containing clopyralid and carfentrazone-ethyl and application thereof
  • Synergistic weeding composition containing clopyralid and carfentrazone-ethyl and application thereof
  • Synergistic weeding composition containing clopyralid and carfentrazone-ethyl and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mefentrazone-ethyl 1%, Clopyralid 29%, Sodium Naphthalene Sulfonate Formaldehyde Condensate 6%, Nonylphenol Polyoxyethylene Ether 3%, Magnesium Aluminum Silicate 0.5%, Ethylene Glycol 7%, Water To 100%, according to the conventional preparation method, it is prepared into a suspension concentrate with a mass percentage content of 30%.

Embodiment 2

[0027] 4% of carfentrazone-ethyl, 32% of clopyralid, 8% of NNO (sodium methylene bis-tetrasulfonate), 7% of alkylphenol polyoxyethylene ether, 100% of sodium lignosulfonate, according to the conventional Preparation method It is prepared as a dry suspension concentrate with a mass percent content of 36%.

Embodiment 3

[0029] Profentrazone-ethyl 10%, clopyralid 70%, NNO (sodium methylene bis-tetrasulfonate) 5%, sodium lignosulfonate 6%, ammonium sulfate 3%, diatomaceous earth to 100%, according to conventional The preparation method is formulated into water-dispersible granules with a mass percent content of 80%.

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Abstract

The invention discloses a synergistic weeding composition containing clopyralid and carfentrazone-ethyl and application thereof. The weeding composition takes clopyralid and carfentrazone-ethyl as main active ingredients, wherein the mass ratio of the clopyralid to the carfentrazone-ethyl is 1-80:1-80. The synergistic weeding composition can be applied to weeding of a wheat land after seedling planting and has remarkable effect when applied to the prevention and control of various broadleaf weeds in the wheat land. Compared with a single agent, the weeding composition delays weed resistance, has a broad weeding spectrum, acts for a long time and is safe for wheat and afterculture crops on the premise of enhancing medicament effect.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to the field of herbicides, and relates to a binary compound of clopyralid and mefentrazone-ethyl. The herbicidal composition can be used for post-emergence weeding in wheat fields. Background technique [0002] Wheat is the main food crop in my country. It is reported that every year wheat in the country has different degrees of weed damage. If the weeding is not done in the field, the wheat yield can be reduced by more than 50%. In order to reduce the economic loss caused by weeds and reduce labor intensity, chemical weeding has gradually been accepted by people because of its convenience, quick effect and long control time. [0003] In recent years, with the increase of herbicide varieties and the widespread promotion of chemical control technology in agricultural production, chemical weeding has been widely used in various stages of wheat growth. Due to the different climat...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N43/40A01P13/00
Inventor 杨寿海沈海峰杨志国曹森包凌云
Owner NANJING HUAZHOU PHARMA
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