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Weeding composition containing halosulfuron-methyl and pyriftalid

A technology of clopyrazosulfuron-methyl and herbicidal composition, which is applied in the direction of herbicides, algicides, biocides, animal repellents, etc., to achieve the effects of reducing the dosage, reducing the cost of medication, and reducing the risk of resistance

Inactive Publication Date: 2014-04-02
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the shortage of single use of herbicides, to fill the gaps in traditional paddy field sealing herbicides and stem and leaf treatment herbicides before the weeds are unearthed to 3 leaves, and to provide a high-efficiency, low-toxicity, Herbicidal composition with low cost, good quick-acting properties, and long-lasting effect, which is beneficial to the comprehensive management of weeds in paddy fields

Method used

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  • Weeding composition containing halosulfuron-methyl and pyriftalid
  • Weeding composition containing halosulfuron-methyl and pyriftalid
  • Weeding composition containing halosulfuron-methyl and pyriftalid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Toxicity determination of clofenclofen and chlorpyrazosulfuron-methyl and their mixture on barnyardgrass at the 2-leaf stage.

[0026] Table 1. Dose-response regression relationship of cyclafen, chlorpyrazosulfuron-methyl and their mixture on barnyardgrass at the 2-leaf stage.

[0027]

[0028] See figure 1 ( figure 1 The drawing refers to NY / T1155.7-2006, and the drawing data comes from Table 1), figure 1 Middle: A is the dose of closulfuron-methyl (g a.i. / hm 2 ), closulfuron-methyl ED 90 Value 11.42. B is the dose of cycloclofenac (g a.i. / hm 2 ), Cyclofenac ED 90 Value 30.21. C is the measured equivalent prediction line of each proportion, and D is the theoretical equivalent line. It can be obtained that fenpyrafen and chlorpyrazosulfuron are in the ratio of 20:1, 15:1, 10:1, 5:1, 1:1, 1:3, 1:5, 1:7, 1:10 The equivalent points of barnyardgrass are all below the theoretical equivalent line, showing a synergistic effect; the line of equivalent poin...

Embodiment 2

[0029] Example 2 (80% Clorazosulfuron-Cyclofenac water-dispersible granules).

[0030]

[0031]

[0032] Put the above materials together into the conical mixer and mix evenly, and then pulverize through the jet mill, and then mix the pulverized 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, dry and sieve to obtain 80% chlorpyrazosulfuron-clofenac-fen water-dispersible granules .

[0033] This example is used to prevent and control annual weeds in rice seedling throwing fields: annual grass weeds, Cyperaceae weeds and broad-leaved weeds are counted, and the application time is 10 days after rice seedling throwing. The weeds are about 1 leaf stage, and the method of application is the poisonous soil method, and about 10 kg of fine moistened soil is applied per acre. A total of 5 treatments were set up in the experiment, treatment 1 was 80% chlorpy...

Embodiment 3

[0038] Example 3 (80% chlorpyrazosulfuron-clofenac-methyl wettable powder).

[0039]

[0040] 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 pulverized materials through the conical mixer. Clopyrazosulfuron-cyclaclofen wettable powder.

[0041] This embodiment is used to prevent and treat annual weeds in rice transplanting fields: annual grass weeds, Cyperaceae weeds, and broad-leaved weeds are counted, and the application time is 7 days after rice transplanting, and the weeds have not emerged. The method of application is the poisonous soil method, and about 10 kg of fine moistened soil is mixed per acre. A total of 5 treatments were set up in the experiment, treatment 1 was 80% clofensulfuron WP WP, treatment 2 was 20% chlorpyrazosulfuron WP, treatment 3 was 40% clofensulfur WP Wet powder, treatment 4 is 50% fenthiazamide · chlorpyrazosulfuron wettable powder, treatment 5 is the contr...

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Abstract

The invention relates to a weeding composition containing halosulfuron-methyl and pyriftalid, and the effective components are halosulfuron-methyl and pyriftalid. The effective components are halosulfuron-methyl and pyriftalid, and the weight parts of halosulfuron-methyl and pyriftalid in the weeding composition is 10:1-1:20. The mixing of halosulfuron-methyl and pyriftalid has obvious synergism for controlling annual weed in paddy field, and can improve weeding effect and enlarge weed control spectrum.

Description

technical field [0001] The invention belongs to the technical field of agricultural weeding, and in particular relates to a paddy field herbicidal composition with chlorpyrazosulfuron-methyl and clofenac as active ingredients. Background technique [0002] With the phase-out of highly toxic pesticides, new pesticides with high efficiency, low toxicity, safety, and environmental friendliness are needed. At the same time, the long-term use of pesticides has resulted in the resistance of pests and weeds, and the requirements for control chemicals are getting higher and higher. It is necessary for pesticide research and development personnel to develop efficient and safe new agents to meet the control requirements. Since the development of pesticides in my country has just started, and the varieties of pesticides with independent intellectual property rights cannot meet the needs, the development of new pesticide mixed preparations is the only way for the current development of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00A01N43/54
Inventor 王礼文陈佛祥朱刚张志伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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