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Weeding composition containing topramezone

A technology of pyrenzazone and herbicidal composition, which is applied in the field of pesticides, can solve the problems of mixing and application without related reports, and achieve the effect of expanding the herbicidal spectrum

Inactive Publication Date: 2014-10-08
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Mixing and application of fenpyrazone, cyanazine, and benzonitrile herbicides (bromoxynil octanoyl or one of bromoxynil) No related reports

Method used

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  • Weeding composition containing topramezone
  • Weeding composition containing topramezone
  • Weeding composition containing topramezone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Biological Assay Example.

[0018] Indoor plants with pyrenzazone, cyanazine, benzonitrile herbicides (bromoxynil octanoyl or one of bromoxynil) and their compounded amaranth (Amaranthus spinosus L.) and polygonum aviculare Toxicity test.

[0019] According to the Colby method to evaluate the combination of herbicides (NY / T1155.7-2006), the formula is as follows:

[0020] E 0 = A × B × C × . . . N 100 ( n - 1 ) .

[0021] In the formula:

[0022] A is the fresh weight inhibition rate of the target weeds when fenpyrazone is used alone at a certain dose;

[0023] B is the fresh weight inh...

Embodiment 2

[0041] Example 2: 37% memetrazone-cyanazine-octanoyl bromoxynil water-dispersible granules.

[0042]

[0043] 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 the material into an extrusion granulator to extrude and granulate. After granulation, it is dried and sieved to obtain 37% pyrenzazone, cyanazine, and bromoxynil Water dispersible granules.

Embodiment 3

[0044] Example 3: 60% meprafen-cyazine-bromoxynil wettable powder.

[0045]

[0046] Add the above materials together into a conical mixer and mix them evenly, then pulverize them through a jet mill, and then mix the pulverized materials through a conical mixer. The fineness of the mixed materials is 98% and passes through a 600-mesh standard sieve to obtain 60% Pyrazenone, cyanazine, and bromoxynil wettable powder.

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Abstract

The invention discloses a weeding composition containing topramezone. The active ingredients of the weeding composition are the topramezone, cyanazine and a cyanophenyl herbicide; the cyanophenyl herbicide is one of bromoxynil octanoate and bromoxynil; the weight percentage of the topramezone in the composition is 0.1%-40%, while the weight percentage of the cyanazine in the composition is 0.1%-30%, and the weight percentage of the cyanophenyl herbicide in the composition is 0.1%-50%, with the balance of pesticide auxiliaries. The weeding composition containing topramezone can be prepared into one of suspension, oil suspension, wettable powder and water dispersible granule; the weeding composition has the control effect obviously superior to that of each single ingredient on annual weeds in a cornfield, so that the dosage is reduced and the herbicide resistance of the weeds is retarded.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a synergistic herbicide combination with pyrenzazone, cyanazine, and benzonitrile herbicides (octanoyl bromoxynil or one of bromoxynil) as active ingredients thing. 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 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 to corn, and is mainly used to control annual grasses in corn fields Grasses and some broadleaf weeds. [0003] Cyanazine is a pre-emergence and post-emergence herbicide of s-triazine corn. It is mainly absorbed through the roots of plan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01P13/00A01N43/70A01N37/40
Inventor 王礼文冷忠国陈佛祥张志伟朱刚吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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