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Synergistic herbicidal composition

A herbicidal composition and composition technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problems that the combination of halopyridine ester has not been reported, etc.

Inactive Publication Date: 2018-07-17
成都科利隆生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There is no report on the combination of halopyridine, cyhalofop-methyl, and fenpyramid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Indoor Toxicity Example

[0040] According to Colby's formula (evaluating the expected effect of a specific composition, refer to S.R.Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide combinations" Weeds 1967,15,20-22) as follows (recorded in CN103202304B, this invention adopts this evaluation method):

[0041]

[0042] A The survival rate or fresh weight residual rate (%) of the target weeds when A is used alone at a certain dose;

[0043] B The survival rate or fresh weight residual rate (%) of the target weeds when a certain dose is used alone;

[0044] C Survival rate or fresh weight residual rate (%) of target weeds when a certain dose is used alone;

[0045] Evaluation criteria: when the observed value of the survival rate is less than the theoretical value, there is a synergistic effect (synergistic effect)

[0046] Indoor toxicity determination of halopyridine, cyhalofop-methyl, fenoxen and their compound pairs Paspalumpaspal...

Embodiment 2

[0063] Embodiment two preparation embodiment

[0064] Preparation No. 1 4% halopyridine 40% cyhalofop-methyl 20% fenoxazone water dispersible granules

[0065] Clofluopyridine 4%, Cyhalofop-methyl 40%, Methazone 20%, Fatty acid ester sulfate 10%, Sodium lauryl sulfate 6%, Starch dextrin 3%, Chitosan 3% , sodium bicarbonate 5%, light calcium carbonate to 100%; put the above materials together into the conical mixer and mix evenly, 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 64 % Chloropyridine, Cyhalofop-methyl, Methafen, water-dispersible granules.

[0066] Preparation No. 2 3% Chloropyridine 30% Cyhalofop-methyl 30% Methazon...

Embodiment 3

[0072] Embodiment Three Application Embodiment

[0073] Field efficacy test of the combination of halopyridine, cyhalofop-methyl, and fenpyramid for controlling annual weeds in paddy fields

[0074] Table 5. Field efficacy tests of halopyridine, cyhalofop-ethyl, and fenoxachlor on controlling annual weeds in paddy fields. The dominant weeds in the field are green barnyardgrass, paspalum biscarpa, barnyard barnyardgrass, and sedge, It accounts for more than 99% of the total amount of weeds. The control method is spraying method, and the water consumption per mu is about 30 kilograms (the grass weeds are applied at the stage of 1 leaf, 1 heart to 2 leaves).

[0075] The drug efficacy calculation formula is as follows:

[0076]

[0077]

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PUM

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Abstract

The invention relates to a synergistic herbicidal composition comprising active ingredients of halauxifen-methyl, cyhalofop-butyl and metamifop; the halauxifen-methyl, the cyhalofop-butyl and the metamifop have a synergistic effect to target weeds in a mass ratio in the range of 0.2 to 4:10:1 to 15, preferably in a mass ratio of 0.2 to 2:10:1 to 15, further preferably in a mass ratio of 0.2 to 2:10:5 to 10, further preferably in a ratio of 0.6:10:5, 1:10:5 or 1:10:10. The composition comprises 5% to 95% by mass of the active ingredients and balance of pesticide adjuvants. The dosage form of the composition is one of an aqueous suspension, a dispersible oil suspension, a water-dispersible granule, and a wettable powder, and the composition is suitable for controlling annual weeds in paddy fields.

Description

technical field [0001] The invention belongs to the field of synergistic herbicidal compositions, and in particular relates to a synergistic herbicidal composition containing active components of halopyridine, cyhalofop-methyl, and fenoxen. Background technique [0002] Chlorflupyridinate, chemical name: 4-amino-3chloro-5-fluoro-6(4-chloro-2-fluoro-3-methoxyphenyl)-pyridine-2-carboxylate benzyl ester, genus growth A member of regulator herbicides, it is effective against gramineous weeds such as barnyardgrass and chinensis, sedge weeds such as sedge and sedge, and broad-leaved weeds such as Alisma, sagittarius, and yujiuhua. Herbicidal activity, safe to rice. [0003] Cyhalofop-fop, an aryloxyphenoxypropionic acid herbicide, can be absorbed by the leaves and leaf sheaths of plants, conducted by phloem, and accumulated in the meristem area of ​​plants, resisting acetyl-CoA carboxylase (ACCase ), so that the synthesis of fatty acids stops, the growth and division of cells ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/76A01N39/04A01N43/40A01P13/00
CPCA01N43/76A01N39/04A01N43/40
Inventor 王礼文
Owner 成都科利隆生化有限公司
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