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Weed control composition containing topramezone

A technology of fenflufenazone and a herbicidal composition, which is applied in the field of pesticides, can solve the problems of weeds being easy to produce drug resistance, the actual control effect, etc., and achieve the effect of expanding the herbicidal spectrum

Inactive Publication Date: 2014-09-03
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 problems in the prior art that when a single pesticide is used alone, it is easy to produce resistance to weeds and the actual control effect is poor, and to provide a high-efficiency, broad-spectrum, economical, safe, and beneficial to the comprehensive management of weeds. herbicidal composition

Method used

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  • Weed control composition containing topramezone
  • Weed control composition containing topramezone
  • Weed control composition containing topramezone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Indoor toxicity determination of goosegrass (Eleusine indica) and iron amaranth (Acalypha australis).

[0034] According to the Colby method to evaluate the combination of herbicides (NY / T1155.7-2006), the formula is as follows:

[0035] E 0 = A × B × C · · · N 100 ( n - 1 ) .

[0036] In the formula:

[0037] A is the fresh weight inhibition rate of the target weeds when fenpyrazone is used alone at a certain dose;

[0038] B is the fresh weight inhibition rate of target weeds when chlorpyrazosulfuron-methyl is used alone at a certain dose;

[0039] C is the fresh weight inhibition rate of target weeds w...

Embodiment 2

[0051] Example 2: Field efficacy test of the combination of fenflumezone, chlorpyrazosulfuron-methyl, and mefenoxetate methyl for controlling annual weeds in cornfields.

[0052] Table 3. Field efficacy test of the combination of memetrazone, chlorpyrazosulfuron-methyl, and mefenoxetate methyl on the control of annual weeds in cornfields.

[0053]

[0054] In summary, the composition of the present invention is reasonable, and the ternary combination of fenpyrazone, chlorpyrazosulfuron, and mesicine has a synergistic response, especially for goosegrass (Eleusine indica), iron amaranth ( Acalypha australis) has a significant synergistic response, expands the herbicidal spectrum, and provides an excellent weed control solution for corn fields, especially those where goosegrass (Eleusine indica) and iron amaranth (Acalypha australis) are dominant weeds The program is suitable for controlling annual weeds in cornfields.

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Abstract

The invention discloses a weed control composition containing topramezone. The weed control composition comprises the following ingredients by weight percent: 0.1-50% of topramezone, 1-40% of halosulfuron-methyl, 1-50% of fluthiacet-methyl and the balance of pesticide adjuvants, wherein the topramezone, wherein the halosulfuron-methyl and the fluthiacet-methyl are active ingredients. The weed control composition is used for controlling annual weeds in the corn fields, has obviously effects better than the corresponding single agent, expands the weed control spectrum, also reduces the dosage, delays the drug resistance of weeds and reduces environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a herbicidal composition containing memetrazone, chlorpyrazosulfuron-methyl, and mefenoxetate methyl as active ingredients, which is used for controlling annual weeds in cornfields. Background technique [0002] Topramezone, a pyrazolone post-emergence stem and leaf treatment agent, can be absorbed by roots, young stems and leaves, and inhibits the double oxidation of 4-hydroxyphenylpyruvate in plastoquinone biosynthesis The enzyme (4HPPD), which indirectly affects the synthesis of carotenoids, interferes with the synthesis and function of chloroplasts, and eventually causes severe albinism (due to the degradation of chlorophyll), is highly selective for maize. [0003] Halosulfuron-methrl is a broad-spectrum selective systemic herbicide of sulfonylureas, which is absorbed mainly through the root system, and can also be absorbed through the stems and leaves, and qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00A01N43/90A01N43/80
Inventor 王礼文冷忠国张志伟朱刚陈佛祥吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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