Weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor

A technology of oxyfluorfen and herbicidal composition, which is applied in the field of pesticide herbicidal composition and its application, which can solve the problems of complex weeds, weed resistance, etc., and achieve pollution reduction, reduced usage, and increased action sites Effect

Active Publication Date: 2016-01-27
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance; at the same time, due to the complex grass phase and various types of weeds in the field, such as grass weeds, sedge weeds Mixed with broad-leaved weeds, etc., the use of a single species of herbicide can no longer effectively solve the above problems, and all will show some defects

Method used

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  • Weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor
  • Weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor
  • Weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: 72% pyriflufen·ethoxyfluorfen·pretilachlor water dispersible granules

[0019] Pyriflufen 4%, oxyfluorfen 8%, pretilachlor 60%, sodium dodecylbenzene sulfonate 5%, sodium polyacrylate 5%, sodium methylene bis-naphthalene sulfonate formaldehyde condensate 5 %, bentonite 3%, hydroxypropyl cellulose 2%, and attapulgite make up 100%. Mix the above-mentioned active ingredients, wetting agent, dispersant, disintegrant, binder and solid carrier evenly, pulverize with an ultra-fine jet mill, knead, and then add to a fluidized bed granulation dryer for granulation and drying and sieving to obtain 72% pyriflufen-ethoxyfluorfen-pretilachlor water-dispersible granules.

Embodiment 2

[0020] Example 2: 80% pyriflufen·ethoxyfluorfen·pretilachlor wettable powder

[0021] Pyriflufen 5%, oxyfluorfen 10%, pretilachlor 65%, calcium dodecylbenzenesulfonate 10%, alkylphenol polyoxyethylene ether formaldehyde condensate 5%, diatomaceous earth supplement 100 %. The above-mentioned active ingredients, wetting agent, dispersant and solid carrier are mixed, mechanically pulverized and then air-flow pulverized, and mixed evenly to prepare 80% pyriflufen-oxyfluorfen-pretilachlor wettable powder.

Embodiment 3

[0022] Example 3: 20% Pyriflufen·Ethoxyfluorfen·Pretilachlor Dispersible Oil Suspension Concentrate

[0023] Pyriflufen 1.5%, oxyfluorfen 2.5%, pretilachlor 16%, sodium isopropyl naphthalene sulfonate 10%, sodium polyacrylate 5%, alkyl naphthalene sulfonate condensation polymer 10%, xanthan Gum 2%, methylated vegetable oil make up 100%. After the above-mentioned active ingredients, wetting agent, dispersant, thickener and liquid carrier are dispersed by high-speed shearing and sand-milled in a sand mill, a highly dispersed and stable suspension system formed in a non-aqueous medium can be prepared 20% pyriflufen·oxyfluorfen·pretilachlor dispersible oil suspension concentrate.

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Abstract

The invention discloses a weeding composition containing pyrithiobac-sodium, oxyfluorfen and pretilachlor. The effective components are the pyrithiobac-sodium, the oxyfluorfen and the pretilachlor. The weight ratio of the pyrithiobac-sodium to the oxyfluorfen to the pretilachlor is 5-15:10-30:50-250. The weeding composition has the remarkable synergistic effect and is applicable to prevention and removal of annual weed in rice paddies. Compared with the using effects of individually used mono-agents, the weeding effect is obviously improved, a weeding spectrum is widened, meanwhile the using amount of pesticides is reduced, environmental pollution is reduced, production of pesticide resistance of weed is delayed, and the service life of the pesticides is prolonged.

Description

technical field [0001] The present invention relates to a pesticide herbicidal composition and its application field, specifically a herbicidal composition with pyriflufen, oxyfluorfen and pretilachlor as active ingredients, which is mainly used for the control of annual weeds in paddy fields . Background technique [0002] Pyriminobac-methyl belongs to pyrimidine salicylic acid herbicides, it can be absorbed through the stems, leaves and roots of weeds, and quickly transmitted to the whole plant, inhibiting the biosynthesis of acetolactate synthase and amino acids, thereby inhibiting And hinder the cell division in weeds, stop the growth of weeds, and eventually make the weeds albino and die. It has special effects on barnyardgrass in paddy fields and is extremely safe to rice. [0003] Oxyfluorfen (oxyfluorfen) is a contact herbicide, the agent mainly enters the weed body through the coleoptile and mesocotyl, and kills the seedlings and seedlings of weeds propagated by s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01P13/00A01N33/22A01N37/22
Inventor 张志伟刘鹏冷忠国陈佛祥朱刚王礼文吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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