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Synergistic weeding composition containing fenoxaprop-p-ethyl

A technology of fenoxaprop-ethyl and herbicidal composition, which is applied in the field of synergistic herbicidal composition, can solve problems such as combinations that have not been reported, and achieve the effect of reducing the cost of use and the amount of pesticide used

Inactive Publication Date: 2018-12-21
JIANGXI ZHONGXUN AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The combination of propanil, cyhalofop-ethyl, and fenoxaprop-p-ethyl has not been reported

Method used

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  • Synergistic weeding composition containing fenoxaprop-p-ethyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Indoor bioassay test

[0042] According to Colby's equation (for evaluation of the expected effect of a particular composition, see S.R. Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide combinations" Weeds 1967, 15, 20-22)

[0043]

[0044] A The survival rate or fresh weight residual rate (%) of the target weeds when A is used alone at a certain dose;

[0045] B The survival rate or fresh weight residual rate (%) of the target weeds when a certain dose is used alone;

[0046] C Survival rate or fresh weight residual rate (%) of target weeds when a certain dose is used alone;

[0047] Evaluation criteria: when the observed value of the survival rate (fresh weight residual rate) is less than the theoretical value, there is a synergistic effect (synergistic effect)

[0048] Indoor toxicity determination of propanil, cyhalofop-ethyl, fenoxaprop-p-ethyl and their compound to crabgrass (Digitaria sanguinalis) and long barnyard barnyardg...

Embodiment 2

[0068] Embodiment two: preparation embodiment

[0069] (1) 27.6% propanil 15% cyhalofop-ethyl 0.4% fenoxaprop-ethyl water suspension concentrate

[0070] Take 27.6% propanil%, 15% cyhalofop-methyl, 0.4% fenoxaprop-p-p, 6% sodium lignosulfonate, 4% phosphate ester, 8% fatty alcohol polyoxyethylene ether, 3% glycerin , deionized water to make up to 100%; the above formula is pre-crushed in proportion, then added to a sand mill for grinding, and mixed with high shear to prepare 27.6% propanil 15% cyhalofop-methyl 0.4% oxazole Diclopyr water suspension concentrate.

[0071] (2) 27.6% propanil 15% cyhalofop-ethyl 0.4% fenoxaprop-p-ethyl dispersible oil suspension concentrate

[0072] Take 27.6% propanil, 15% cyhalofop-methyl, 0.4% fenoxaprop-ethyl, 10% castor oil polyoxyethylene ether, 8% isomeric alcohol, 7% polyoxyethylene polyoxypropylene ether block copolymer , glycerol 3%, methyl oleate to 100%, after they are mixed, high-speed shearing, dispersion, and sand grinding in a s...

Embodiment 3

[0075] Embodiment Three: Application Embodiment

[0076] Table 6 Field efficacy test on controlling annual weeds in paddy fields. The dominant grass weeds in the field are barnyardgrass, bald barnyardgrass, crabgrass, and thousand gold seeds, accounting for more than 95% of the total amount of grass weeds. The control method is stem Leaf spray method, the water consumption per mu is about 30 kg (weed 3-5 leaf stage).

[0077]

[0078]

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Abstract

The invention relates to a synergistic weeding composition containing fenoxaprop-p-ethyl. The effective components of the synergistic weeding composition are prepared from A, B and C, wherein A is selected from propanil, B is selected from cyhalofop-butyl and C is selected from fenoxaprop-p-ethyl; the mass ratio of the effective components A to B to C is (15 to 45) to 15 to (0.1 to 3); the mass percent of the effective components in the weeding composition is 1 to 60 percent and the balance of pesticide adjuvants. The application dosage form of the weeding composition disclosed by the invention can be one of a water suspension agent, a dispersible oil suspension agent, a water dispersion granule, a wettable powder and emulsifiable concentrate; the weeding composition disclosed by the invention has a synergistic effect on annual weeds in paddy rice fields and is suitable for preventing and controlling the annual weeds in the paddy rice fields.

Description

technical field [0001] The invention belongs to the field of synergistic herbicidal compositions, in particular to a synergistic herbicidal composition containing active ingredients A, B, and C; wherein A is selected from propanil, B is selected from cyhalofop-ethyl, and C is selected from oxacarb-ethyl grass spirit. Background technique [0002] Propaniln is a highly selective contact herbicide of amides, which not only destroys photosynthesis of plants, but also inhibits respiration and oxygen phosphorylation, and interferes with nucleic acid and protein synthesis. As a result, the physiological functions of sensitive plants are affected, water loss is accelerated, leaves gradually wither, and finally die. [0003] Cyhalofop-buty is the only one among the aryloxyphenoxypropionic acid herbicides that is highly safe to rice. Like other varieties in this category, it is also a systemic conductive herbicide. Absorbed by the leaves and leaf sheaths of the plant, conducted by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/22A01N43/76A01N39/04A01P13/00
CPCA01N37/22A01N39/04A01N43/76
Inventor 王礼文王贵新沈超群李刚陈佛祥张志伟
Owner JIANGXI ZHONGXUN AGROCHEM
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