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Weeding composition containing pendimethalin, mefenacet and pyrazosulfuron-ethyl or halosulfuron-methyl as well as preparation and applications of weeding composition

A herbicidal composition, a technology of fenpropion, applied in the directions of herbicides and algaecides, applications, biocides, etc., can solve the problems of high development cost, difficult effect, long development cycle, etc., and reduce labor. Quantity, weeding effect is good, the effect of reducing production cost

Inactive Publication Date: 2015-05-06
ZHEJIANG XINNONG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development cost of new active ingredients is high, the development cycle is long, and it will never keep up with the speed of weed resistance
Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to achieve obvious effects in actual operation.

Method used

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  • Weeding composition containing pendimethalin, mefenacet and pyrazosulfuron-ethyl or halosulfuron-methyl as well as preparation and applications of weeding composition
  • Weeding composition containing pendimethalin, mefenacet and pyrazosulfuron-ethyl or halosulfuron-methyl as well as preparation and applications of weeding composition
  • Weeding composition containing pendimethalin, mefenacet and pyrazosulfuron-ethyl or halosulfuron-methyl as well as preparation and applications of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: emulsifiable concentrate

[0052] With 25% pendimethalin, 15% dimethalin and 8% triphenylethylphenol polyoxypropylene polyoxyethylene block polymer, 4% alkylbenzene sulfonate, heavy aromatic hydrocarbon solvent oil is supplemented to 100%, after mixing and stirring, an emulsifiable concentrate preparation is obtained. According to actual needs, an appropriate amount of turpentine-based vegetable oil can be added to prepare an emulsifiable concentrate preparation with an active ingredient content of 40%.

Embodiment 2

[0053] Embodiment 2: emulsifiable concentrate

[0054] Make up 20% pendimethalin, 10% fenthiazide, 15% pyrazosulfuron-methyl, 10% fatty alcohol polyoxyethylene ether, 5% alkylbenzene sulfonate, heavy aromatic solvent oil to 100%, After mixing and stirring, an emulsifiable concentrate preparation is obtained. According to actual needs, an appropriate amount of xylene can be added to prepare an emulsifiable concentrate preparation with an active ingredient content of 45%.

Embodiment 3

[0055] Embodiment 3: water dispersible granules

[0056] Fully mix 20% pendimethalin, 20% fenthiazide, 4.0% acylglutamate, 3.0% lignosulfonate, 15.0% ammonium chloride, and 38.0% kaolin, and then pulverize by airflow to produce Granules are formed into water-dispersible granules. The water-dispersible granules contain 40% active compound, and the particle size of the product is 80-120 mesh.

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Abstract

The invention relates to a weedicide, and particularly relates to a weeding composition containing pendimethalin, mefenacet and pyrazosulfuron-ethyl or halosulfuron-methyl, as well as a preparation and applications of the weeding composition. The weeding composition containing pendimethalin and mefenacet comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is pendimethalin, the active ingredient B is mefenacet. The weeding composition further comprises an active ingredient C which is pyrazosulfuron-ethyl or halosulfuron-methyl. The weeding composition is efficient, low-toxicity, low in residues, good in environment compatibility and low in cost and has unexpected synergistic effect, and the weeding composition can be prepared into a wettable powder, powder, water dispersible granules, granules, a dry suspending agent, microcapsule suspending agent, a microemulsion, an emulsion in water, a suspoemulsion, an oil suspension, emulsifiable solution, effervescent tablets and other any pesticide preparation dosage forms, which can be used for inhibiting the growth of undesirable plants.

Description

technical field [0001] The invention relates to a herbicide, in particular to a herbicidal composition containing pendimethalin, mefenacet and pyrazosulfuron-methyl or chlorpyrazosulfuron-methyl, as well as its preparation and application. Background technique [0002] Herbicide varieties containing a single active component often have different degrees of defects in the control of weeds in agricultural fields. For example, weeds are prone to resistance after continuous application, the herbicide spectrum is narrow, and frequent applications will aggravate environmental pollution. One way to control agriculturally resistant weeds is to introduce new ingredients that are not cross-resistant with existing varieties. However, the development cost of new active ingredients is high, the development cycle is long, and it will never keep up with the speed of weed resistance. Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to ach...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N33/18A01N43/78
Inventor 郭世俭杜金河李俊范坤成曹小燕
Owner ZHEJIANG XINNONG CHEM CO LTD
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