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Pesticide weeding composition

A herbicidal composition and the technology of the composition, applied in the field of pesticides, can solve the problem that weeds in cornfields are prone to produce drug resistance and control effects, and achieve the effect of expanding the herbicidal spectrum

Active Publication Date: 2015-08-19
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 problems in the prior art that when a single pesticide is used alone, it is easy to produce resistance to weeds in cornfields and the actual control effect is poor, and to provide a high-efficiency, broad-spectrum, economical, safe, beneficial to cornfield weeds. Pesticide composition for integrated weed management

Method used

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  • Pesticide weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Formulation example 1: 40% fenpyrazone·aminopyralid·octanoyl bromoxynil water-dispersible granules.

[0015]

[0016] 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 40% fenpyrazone·aminopyralid·octanoyl bromide Benzonitrile water dispersible granules.

Embodiment 2

[0017] Formulation example 2: 25% fenpyrazone·aminopyralid·bromoxynil wettable powder.

[0018]

[0019] 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 25% Benpyrazone · aminopyralid · bromoxynil wettable powder.

[0020] Formulation example 3: 30% profentrazone·aminopyralid·bromoxynil suspension concentrate.

[0021]

[0022] The above formula is pre-crushed according to the proportion, then added to a sand mill for grinding, and prepared after high-shear mixing to obtain a 30% meprafen-aminopyralid-bromoxynil suspension concentrate.

[0023] Formulation example 4: 23.5% memetrazone·aminopyralid·octanoylbromoxynil oil suspension concentrate.

[0024]

[0025] Put the above materials (except organic bentonite) into the reaction kettle mixer ...

Embodiment 2

[0043] Biological Assay Example 2: Field efficacy test for controlling annual weeds in cornfields.

[0044] Table 3. The results of the field efficacy test on the control of annual weeds in cornfields by the combination of metrafenone, aminopyralid and benzonitrile herbicides.

[0045]

[0046]In summary, the composition of the present invention is reasonable, and the ternary combination of fenpyrazone, aminopyralid and its salts, and benzonitrile herbicides (octanoyl bromoxynil or one of bromoxynil) It has a synergistic response, especially to Amaranthus spinosus L. and Polygonum aviculare (Polygonum aviculare). Polygonum aviculare (Polygonum aviculare) provides an excellent weed control solution for cornfields with dominant weeds, and is suitable for controlling annual weeds in cornfields.

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Abstract

The invention discloses a pesticide weeding composition, active ingredients of which comprise topramezone, aminopyralid or its salt compound and a benzonitrile herbicide. The benzonitrile herbicide is selected from one of bromoxynil octanoate or bromoxynil. The weeding composition provided by the invention has an outstanding synergistic effect and has more obviously excellent effect of controlling and removing annual weeds in corn fields than a single ingredient. Dosage of active ingredients of the composition is obviously reduced in comparison with dosage of a single ingredient. In addition, weed control spectrum is broadened, drug resistance of weeds is delayed, and environmental pollution is mitigated.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a synergistic responsive pesticide composition with pyrenzazone, alanopyral, and benzonitrile herbicides as active ingredients and its use in controlling annual weeds in cornfields application. 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] Aminopyralid, a new type of pyridine carboxylic herbicide, is mainly used for the control of ann...

Claims

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Application Information

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IPC IPC(8): A01N43/80A01P13/00A01N43/40A01N37/40
Inventor 王礼文冷忠国陈佛祥朱刚张志伟吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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