Ternary compound herbicidal composition

A herbicidal composition, diflufenamide technology, applied in the field of agrochemicals, can solve problems such as weeds are prone to drug resistance, gramineous weeds are ineffective, and the herbicidal spectrum is narrowed, so as to delay weed resistance, Reduce production cost and use cost, expand the effect of weed killing spectrum

Inactive Publication Date: 2017-06-20
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2-methyl-4-chloro (MCPA) or its salt or its ester is a phenoxyacetic acid selective hormone-type herbicide, which is easily absorbed by roots and leaves. It is mainly used to control various annual and Perennial broad-leaved weeds, it has a significant effect on Cyperus cyperi, three-edge grass, sausage, bermudagrass, and sagittarius, but it is basically ineffective against gramineous weeds
[0006] Herbicide varieties containing a single active component have defects in weed control to varying degrees, such as weeds are prone to resistance after continuous use, the herbicide spectrum becomes narrower, and environmental pollution is caused.

Method used

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  • Ternary compound herbicidal composition
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  • Ternary compound herbicidal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The synergistic effect of diflufenamide, isoproturon and thifensulfuron-methyl on the control of weeds in wheat fields will be described below through indoor toxicity testing.

[0021] In order to control weeds in wheat fields, the inventors conducted synergistic research on the synergistic effect of the active ingredients diflufenamide, isoproturon and thifensulfuron-methyl. The specific method is: the test target is the main broad-leaved weed in the wheat field stork. The original drug is prepared into the required test agent, and the test method refers to the "People's Republic of China Agricultural Industry Standard NY / T1155.7-2006 Indoor Bioassay Test Guidelines for Pesticides and Herbicides Part 7: Determination of Combined Effects of Mixing". Firstly, the single agent and each mixed agent are set to 5-7 different concentrations. Set water control, repeated 4 times. Using the pre-emergence soil spray method, prepare the test target in advance, and two days after...

Embodiment 162

[0032] Dosage Form Example 1 62% diflufenamide·isoproturon·thifensulfuron-methyl water-dispersible granules (10:50:2)

[0033] Diflufenamide 10%, Isoproturon 50%, Thifensulfuron 2%, Sodium Dibutyl Naphthalene Sulfonate 3%, MORWET D425 (Alkyl Naphthalene Sulfonate Formaldehyde Condensate) 8%, Sodium Sulfate 12% , the balance of cornstarch. All the above ingredients are pulverized by air flow to make the average particle size of the material less than 5um. Transfer the pulverized material to a kneader, add water and knead, transfer the kneaded material to a granulator for granulation, and dry the granules to obtain 62% diflufenamide·isoproturon·thifensulfuron-methyl Water dispersible granules.

Embodiment 258

[0034] Formulation Example 2 58% diflufenamide · isoproturon · thifensulfuron wettable powder (20:150:4)

[0035] Diflufenamide 6.7%, Isoproturon 50%, Thifensulfuron 1.3%, Sodium Lignosulfonate 8%, TERWET1007 (alkyl naphthalene sulfonate) 3%, White Carbon Black 2%, Kaolin balance. All the above ingredients are pulverized by air flow to make the average particle size of the material less than 5um. A 58% diflufenamide-isoproturon-thifensulfuron-methyl wettable powder (20:150:4) can be obtained.

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Abstract

The invention discloses a ternary compound herbicidal composition. The composition is prepared from the following components in percentage by weight: 10 to 80% of active ingredient and 20 to 90% of auxiliary component of pesticide formulation, wherein the first active ingredient is diflufenican, the second active ingredient is isoproturon, the third active ingredient is any one of thifensulfuron methyl, 2-methyl-4-chlorophenoxyacetic acid or salts or esters thereof, and the weight ratio of the first active ingredient, the second active ingredient to the third active ingredient is (10 to 30) to (50 to 150) to ( 1 to 8). The ternary compound herbicidal composition provided by the invention has the advantages of obviously expanding the herbicidal spectrum and improving the overall control effect on weeds in a wheat field. Meanwhile, the composition is safe to wheat, and is a very good novel pharmaceutical composition for controlling annual weeds in the wheat field.

Description

technical field [0001] The invention belongs to the field of agrochemicals, and in particular relates to a herbicidal composition aimed at solving the problem of controlling annual weeds in wheat fields. Background technique [0002] Diflufenican belongs to the amide herbicides and carotenoid biosynthesis inhibitors. The content of carotenoids in the treated plants decreased, which in turn resulted in the destruction of chlorophyll, rupture of cell membranes, weeds showed discoloration or whiteness of young shoots, and finally led to death. It can be used for the pre-emergence or post-emergence control of wheat after sowing, to prevent and control pig worms, field viola, mother-in-law, and Baogai grass, etc. [0003] Isoproturon (isoproturon) belongs to photosynthetic electron transport inhibitor, belongs to substituted urea selective pre-emergence and post-emergence herbicide, the drug is mainly absorbed by weed roots and stems and leaves, and conducts upward with water in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N47/30A01N43/40A01N39/04A01P13/00
CPCA01N47/36A01N39/04A01N43/40A01N47/30A01N2300/00
Inventor 陈丰喜王国华祁月月钱祥法范伟赠
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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