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Multi-component compound weeding composition

A herbicidal composition and multi-component technology, applied in the field of agrochemicals, can solve the problems of limited herbicidal spectrum and inability to fully and effectively control weeds in corn fields, and achieve a broad herbicidal spectrum, delay weed resistance, and expand herbicidal spectrum Effect

Inactive Publication Date: 2017-04-26
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, herbicides in corn fields are limited by the safety of crops, and the herbicidal spectrum is also limited. Herbicide varieties containing a single active component have defects in weed control to varying degrees. Using a herbicide alone can no longer completely effectively control corn. Therefore, the reasonable combination of herbicides is to improve the control effect, expand the herbicide spectrum or extend the use time, delay the speed of weed community succession, reduce the risk of resistance caused by the single use of pesticides, and reduce the impact on the weeds. Environmental pollution, an effective method to reduce the cost of use and herbicide residues

Method used

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  • Multi-component compound weeding composition
  • Multi-component compound weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mesotrione 4%, Clopyralid Ethyl (as acid) 3%, S-Metolachlor 35%, Calcium dodecylbenzenesulfonate 8%, Styrylphenol polyoxyethylene ether 7%, fatty alcohol polyoxyethylene ether 3%, organic bentonite 3%, the balance of methyl oleate. Mix all the above-mentioned ingredients evenly according to the stated ratio, and grind the obtained material with a horizontal sand mill so that the average particle size of the obtained material is less than 5 microns, and then 42% mesotrione · clopyralid · S-metropazone can be obtained Amine dispersible oil suspension concentrate (8:6:70).

Embodiment 2

[0024] Mesotrione 4%, Clopyralid Isopropyl (acid) 4.5%, Metolachlor 50%, Calcium Dodecyl Benzene Sulfonate 5%, Castor Oil Polyoxyethylene Ether 4%, Polyoxyethylene polyoxypropylene block copolymer 3%, organosilicon defoamer 0.1%, organic bentonite 3%, soybean oil balance. Mix all the above-mentioned ingredients evenly according to the stated ratio, and grind the obtained material with a horizontal sand mill so that the average particle size of the obtained material is less than 5 microns, and then 58.5% mesotrione·chlorpyralid·metolachlor can be obtained. Disperse oil suspension concentrate (8:9:100).

Embodiment 3

[0026] Mesotrione 4%, clopyralid sodium salt (acid) 3%, S-metolachlor 35%, calcium dodecylbenzenesulfonate 8%, sodium lignosulfonate 7%, Fatty alcohol polyoxyethylene ether 3%, white carbon black 8%, kaolin clay balance. After absorbing S-metolachlor 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 42% mesotrione·diclopyralid potassium·S-metolachlor wettable powder (8:6:70) can be obtained.

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PUM

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Abstract

The invention discloses a multi-component compound weeding composition and application thereof and relates to the technical field of pesticide compounding. The multi-component compound weeding composition is prepared from mesotrione, clopyralid or its salt and metolachlor or S-metolachlor, wherein the weight ratio of the mesotrione to the clopyralid or its salt or its ester (calculated as acid) to the metolachlor or S-metolachlor is calculated as (4-12) to (3-9) to (40-100), and the total weight percentage content of the mesotrione, the clopyralid or its salt or its ester and the metolachlor or S-metolachlor in the composition is 1%-80%. The multi-component compound weeding composition has the effects of achieving remarkable synergistic interaction, enlarging a weed controlling spectrum, reducing the production and usage costs, reducing pesticide residues and environmental pollution and the like and consists of effective ingredients different in action mechanism simultaneously, action sites are increased, and overcoming and delaying of the drug resistance of weeds are promoted.

Description

Technical field [0001] The invention belongs to the field of agrochemistry, and in particular relates to a multi-compound herbicidal composition aimed at solving the problem of controlling annual weeds in corn fields. Background technique [0002] Mesotrione (mesotrione) is a triketone herbicide. Its mechanism of action is a hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor. It is a new type of selective systemic conduction pre- and post-emergence broad spectrum. A selective herbicide that can inhibit the biosynthesis of target carotenoids. Yellowing symptoms will appear in the plant meristem within 3-5 days after use. The agent can be transmitted in the xylem and phloem of the plant, and can effectively control broad-leaf weeds and some grasses. Weeds, it has high activity against amaranth retroflexus, crabgrass, and goosegrass, but has low activity against purslane and amaranth. [0003] Clopyralid or its salt or ester (clopralid) is a synthetic plant growth hormone. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40A01N41/10A01N37/22A01P13/00
CPCA01N43/40A01N37/22A01N41/10
Inventor 陈丰喜祁月月范伟赠王国华卓家雄
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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