A pesticide composition used for weed control in corn fields

A pesticide composition and corn field technology are applied in the field of pesticides to 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

[0009] The object of the present invention is to solve the shortcomings of single use of herbicides, and provide a pesticide composition with high

Method used

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  • A pesticide composition used for weed control in corn fields
  • A pesticide composition used for weed control in corn fields
  • A pesticide composition used for weed control in corn fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Mefentrazone, chlorpyrisulfuron, pyridyloxyacetic acid herbicides (one of fluroxypyr isooctyl or fluroxypyr) and their combination pair Tian Binhua ( Convolvulus arvensis), Commelina communis (Commelina communis) indoor toxicity determination.

[0018] According to the Colby method to evaluate the herbicide combination method (NY / T1155.7-2006), the formula is as follows:

[0019] E 0 = A X B X C X . . . N 10 0 ( n - 1 ) .

[0020] In the formula: A is the fresh weight inhibition rate of mefentrazone on the target weed when used alone at a certain dose;

[0021] B is the fresh weight inhibition rate of chlorpyrisulfuron on the target weed when used alone at a certain dose;

[0022] C is the fresh weight inhibition rate of fluroxypyr or its ester compounds on the target weed when used alone at a certain dose;

[0023] n is the number of mixed herbicide varieties;

[0024] E 0 It is the theoretical value of the inhi...

Embodiment 2

[0041] Example 2: Preparation of Mefentrazone·Chlorpyrisulfuron·Isooctyl Chloropyroxyacetate water dispersible granules.

[0042]

[0043] Add the above materials into a cone mixer and mix them evenly, then pulverize by a jet mill. The crushed materials are then mixed by a cone mixer. The mixed material has a fineness of 98% and passes through a 600-mesh standard sieve and is added to the kneader. Kneaded into plastic materials, and finally put this material into an extrusion granulator to extrude and granulate. After granulation, after drying and sieving, the corresponding weight percentage of mefentrazone·chlorpyrisulfuron· Isooctyl fluroxypyr water dispersible granules.

Embodiment 3

[0044] Example 3: Preparation of Mefentrazone·Chlorpyrisulfuron·Chloflupyroxyacetic acid wettable powder.

[0045]

[0046] Add the above materials into a cone mixer and mix them evenly, and then pulverize by a jet mill. The crushed materials are then mixed by a cone mixer. The fineness of the mixed materials is 98% and passes through a 600-mesh standard sieve to obtain the corresponding weight. Percentage of the wettable powder of mefentrazone, chlorpyrisulfuron, and fluroxypyr.

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Abstract

The invention discloses a pesticide composition used for weed control in corn fields. The composition comprises an effective component A, an effective component B, and an effective component C, with the balance being pesticide adjuncts, wherein the effective component A is topramezone, the effective component B is halosulfuron-methyl, the effective component C is fluroxypyr or ester compounds thereof, and the weigh percentages of the effective component A, the effective component B and the effective component C are respectively 0.1-50%, 0.1-50% and 0.1-70%. The composition is used for annual weed control in the corn field. Control effects of the composition are improved than that of a single agent. The using amount of the pesticide is reduced. Bad influences of the pesticide on the ecological environment are reduced. The composition has an important significance for comprehensive weed resistance control and has large economic benefit and social benefit.

Description

Technical field [0001] The invention belongs to the technical field of pesticides, and specifically relates to a pesticide composition for controlling weeds in corn fields. Background technique [0002] Mefentrazone is a pyrazolone-based post-emergence stem and leaf treatment agent, which can be absorbed by roots, young stems and leaves, by inhibiting 4-hydroxyphenylpyruvate dioxidase (4HPPD) in plastoquinone biosynthesis , Which indirectly affects the synthesis of carotenoids, interferes with the synthesis and function of chloroplasts, and eventually leads to severe albinism (due to the degradation of chlorophyll). It is highly selective for corn and is mainly used to control annual grass weeds and some broad grasses in corn fields. Leaf weed. [0003] Chlorpyrimesulfuron is a sulfonylurea broad-spectrum selective systemic conduction herbicide. It is mainly absorbed through roots and also through stems and leaves. It quickly transfers in weed plants, inhibits growth, and weeds gr...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N43/80A01N43/40
Inventor 王礼文张志伟朱刚陈佛祥吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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