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Weeding composition

A technology composed of herbicidal composition and adjuvants, applied in the field of pesticides, to achieve the effects of reducing costs, improving control effects, and crop safety

Inactive Publication Date: 2016-03-30
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of drug resistance to farmland weeds in the prior art and to improve the efficacy, and to provide a herbicidal composition with high efficiency, low toxicity, environmental protection, and beneficial to the comprehensive management of farmland weeds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Indoor toxicity test of bromoxynil and fluroxyfen to Abutilontheophrasti (ABUTH), Amaranthus retroflexus (AMARE) and Acalyphaaustralis (ACAAU).

[0028] Table 1. Bromoxynil capryloyl, fluroxypyr and their compound pairs in the greenhouse at the bud stage of Abutilontheophrasti (ABUTH), Amaranthus retroflexus (AMARE), and Acalypha australis (ACAAU) 15 days after the drug application control results.

[0029]

[0030] According to the Colby method to evaluate the combination of herbicides, the data in Table 1 show that the binary combination of octanoyl bromoxynil and fluroxyfen has a significant synergistic effect on ACAAU, E-E 0 The values ​​are all greater than 20%.

Embodiment 2

[0031] Example 2: Indoor toxicity test of bromoxynil, nicosulfuron and their compound pairs Abutilontheophrasti (ABUTH), Amaranthus retroflexus (AMARE) and Acalyphaaustralis (ACAAU).

[0032] Table 2. Bromoxynil octanoyl, nicosulfuron and their compound pairs in the greenhouse in bud stage Abutilontheophrasti (ABUTH), Amaranthus retroflexus (AMARE) and Acalypha australis (ACAAU) 15 days after drug application control the outcome.

[0033]

[0034]

[0035] According to the Colby method to evaluate the herbicide combination mode, the data in Table 2 show that the binary combination of bromoxynil and nicosulfuron is effective against Abutilontheophrasti (ABUTH), Amaranthus retroflexus (AMARE), and Acalypha australis (ACAAU). ) has a significant synergistic effect, E-E 0 The values ​​are all greater than 20%.

Embodiment 3

[0036] Example three: (bromoxynil octanoyl fluroxyfen water dispersible granules)

[0037]

[0038] Put the above materials together into the conical mixer and mix them evenly, and then crush them through the jet mill, and then mix the crushed materials through the conical mixer. Knead into a plastic material, and finally put this material into an extrusion granulator to extrude and granulate. After granulation, it is dried and sieved to obtain the corresponding weight percentage of octanoyl bromoxynil·fluroxypyr acetic acid water Dispersible granules.

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PUM

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Abstract

The invention discloses a weeding composition. The weeding composition is composed of an effective ingredient a, an effective ingredient b and an auxiliary agent, the effective ingredient a is bromoxynil octanoate, the effective ingredient b is one selected from fluroxypyr and nicosulfuron, the weight ratio of the effective ingredient a to the effective ingredient b is 1:20-20:1, and the total weight percentage of the effective ingredient a and the effective ingredient in the weeding composition is 1%-90%. When the weeding composition is applied to control and remove annual weeds in corn field, the control effect is obviously increased compared with that of a single agent, also the usage amount of pesticides is reduced, pesticide cost is reduced, the service life of the pesticide is prolonged, and adverse influence of the pesticide on ecological environment is reduced.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a synergistic herbicidal composition with bromoxynil and fluroxyfen (or nicosulfuron) as active ingredients, which is suitable for controlling annual weeds in corn fields. Background technique [0002] Bromoxyniloctanoate is a contact herbicide for selective post-emergence stem and leaf treatment. It is mainly absorbed by leaves and conducts extremely limited conduction in plants. It inhibits various processes of photosynthesis, including inhibition of photosynthetic phosphorylation and Electron transfer, especially the Hill reaction of photosynthesis, causes the rapid necrosis of plant tissues, thereby achieving the purpose of herbicide. When the temperature is high, the leaf death is accelerated, and it is effective for cornfields such as Polygonum, Chenopodium, Amaranthus, Pit Grass, Solanum nigrum, and Cocklebur. , Field bindweed and other broad-leaved weeds are highly eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/40A01N37/40A01P13/00
CPCA01N47/36A01N37/40A01N43/40
Inventor 王礼文陈佛祥吴泽伟朱刚张志伟颜石雷
Owner GUANGDONG ZHONGXUN AGRI TECH
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