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Weeding composition

A herbicidal composition and a technology for the composition, applied in the field of pesticides, can solve problems such as expanding the herbicidal spectrum, and achieve the effect of expanding the herbicidal spectrum

Inactive Publication Date: 2017-02-15
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The object of the present invention is to provide a ternary combination (i.e. quinclozone, cyhalofop-ethyl, sulfonylurea herbicide) which can solve the shortcomings of single or dual use of herbicides, expand the herbicide spectrum, and Herbicidal composition having a synergistic response

Method used

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  • Weeding composition
  • Weeding composition
  • Weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment one: Indoor toxicity assay

[0045] Colby's equation is used to determine the expected herbicidal action of a mixture (Colby, S.R. Weeds 1967, 15, 20-22. Calculation of the synergistic and antagonistic response of herbicide combinations):

[0046] The following equation was used to calculate the expected activity of a mixture containing the two active ingredients A and B:

[0047]

[0048] In the formula:

[0049] A = efficacy of active ingredient A at the same concentration observed for the mixture;

[0050] B = efficacy of active ingredient B at the same concentration observed for the mixture.

[0051] When the actual observed activity of the mixture at the concentration used is greater than expected, the mixture appears to have an unexpected synergistic effect on the target weed.

[0052] Toxicity determination of quinclomid, cyhalofop-ethyl, sulfonylurea herbicides and their combinations on barnyardgrass (Echinochloacrusgalli), daughter-in-law (Lept...

Embodiment 2

[0104] Example 2: 66% quinclozone·cyhalofop-ethyl·bensulfuron-methyl water-dispersible granule.

[0105] The following substances are all in weight ratio: quinclomidone 30%, cyhalofop-methyl 30%, bensulfuron-methyl 6%, fatty acid ester sulfate 6%, polycarboxylates 4%, corn flour 8%, Sodium lignosulfonate 9%, diatomaceous earth to 100%; put the above materials together into the conical mixer and mix evenly, and then pulverize through the jet mill, and the pulverized materials are then mixed through the conical mixer, and the mixed The fineness of the material is 98% and passes through a 600-mesh standard sieve, and is added to a kneader to knead into a plastic material. Finally, the material is put into an extrusion granulator to extrude and granulate. After granulation, it is dried and sieved to obtain 66 % quinclomidone · cyhalofop-methyl · bensulfuron-methyl water dispersible granules.

Embodiment 3

[0106] Example 3: 46% quinclozone·cyhalofop-ethyl·bensulfuron-methyl water-dispersible granule.

[0107] The following substances are all in weight ratio: quinclodone 20%, cyhalofop-methyl 20%, bensulfuron-methyl 6%, fatty acid ester sulfate 6%, polycarboxylates 4%, corn flour 8%, Sodium lignosulfonate 9%, diatomaceous earth to 100%; put the above materials together into the conical mixer and mix evenly, and then pulverize through the jet mill, and the pulverized materials are then mixed through the conical mixer, and the mixed The fineness of the material is 98%, which passes through a 600-mesh standard sieve, and is added to a kneader to knead into a plastic material. Finally, the material is put into an extrusion granulator to extrude and granulate. After granulation, it is dried and sieved to obtain 46 % quinclomidone · cyhalofop-methyl · bensulfuron-methyl water dispersible granules.

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Abstract

The invention relates to a weeding composition containing the active ingredients: A) quintrione, B) cyhalofop-butyl, and C) a sulfonylurea herbicide, wherein the sulfonylurea herbicide is selected from one of bensulfuron methyl, pyrazosulfuron ethyl, halosulfuron-methyl, metazosulfuron, propyrisulfuron, flucetosulfuron, and orthosulfamuron; the weight ratio of quintrione to cyhalofop-butyl to the sulfonylurea herbicide in the composition is (0.1-30) to (0.1-30) to (0.1-10), and the balance is a pesticide auxiliary agent; the dosage form of the weeding composition can be a suspending agent, a dispersible oil suspending agent, water dispersible granules and a wettable powder, is applied for prevention and removal of annual weeds in paddy fields, has obvious synergistic interaction response, and can provide good solutions for prevention and removal of the annual weeds in the paddy fields.

Description

Technical field [0001] The invention belongs to the technical field of pesticides, and specifically relates to a synergistic response herbicidal composition with quinclotrione, cyhalofop-ethyl and sulfonylurea herbicides as active ingredients, wherein the sulfonylurea herbicide is selected from One of bensulfuron-methyl, pyrazosulfuron-methyl, chlorpyrazosulfuron-methyl, pyrazosulfuron-methyl, propyrasulfuron-methyl, flubisulfuron-methyl, and pyrimisulfuron-methyl. Background technique [0002] Quinclotrione, chemical name 2-(3,7-dichloroquinol-8-yl)carbonyl-cyclohexane-1,3-dione, is safe for rice and is not harmful to autumn weeds such as barnyard grass and barnyardgrass. Grasses, barnyardgrass, bald barnyardgrass, hard barnyardgrass, crabgrass, snakehead, mossicae, clove polygonum, special-shaped sedge, and crushed rice sedge have good control effects. [0003] Cyhalofop-butyl is an aryloxyphenoxypropionic acid herbicide. It can be absorbed by the leaves and leaf sheaths ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/42A01N39/04A01P13/00
CPCA01N39/04A01N43/42A01N47/36A01N2300/00
Inventor 王礼文陈佛祥朱刚张志伟吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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