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Pesticide composition comprising bensulfuronmethyl and pendimethalin

A pesticide composition, pendimethalin technology, applied in the directions of biocides, animal repellents, plant growth regulators, etc., can solve the problems of weed resistance and poor actual control effect, etc., to reduce adverse effects, The effect of reducing the frequency of medication, making up for deficiencies and limitations

Inactive Publication Date: 2012-04-11
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem to be solved: the purpose of the present invention is to solve the problems of weed resistance and poor actual control effect in the prior art, and provide a kind of high-efficiency, low toxicity, good quick-acting and long-lasting effect, which is beneficial to weeds. Pesticide Composition for Integrated Grass Control

Method used

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  • Pesticide composition comprising bensulfuronmethyl and pendimethalin
  • Pesticide composition comprising bensulfuronmethyl and pendimethalin
  • Pesticide composition comprising bensulfuronmethyl and pendimethalin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Bioassay Example 1: Determination of combined effects of bensulfuron-methyl and pendimethalin on weeds.

[0021] Test material: Chickweed[ Stellaria media (L.) Cyrillus] (seed collection in field preservation).

[0022] barnyard grass [ Echinochloa crusgalli (L.) Beaw Setaria] (field collection of seeds for preservation).

[0023] Test equipment: controllable light incubator; POTTER precision laboratory spray tower; electronic balance (sensitivity 0.1mg); micropipette gun, etc.

[0024] Test method: first weigh a certain quality of 96% bensulfuron-methyl technical substance and 95% pendimethalin technical substance, add acetone to fully dissolve it, dilute it with 0.1% Tween 80 aqueous solution, and prepare single-dose mother liquor respectively, according to Set a series of proportions for the purpose of mixing, and set 5 to 7 concentration gradients for each proportion. Select representative sensitive weed seeds according to the single-dose herbicidal spectrum...

Embodiment 3

[0041] Formulation Example 3 : 20% Bensulfuron-methyl Pendimethalin water dispersible granules.

[0042] Bensulfuron-methyl 5%, Pendimethalin 15%, Sodium Lauryl Sulfate 10%, Polycarboxylate 5%,

[0043] Sodium Chloride 6%, Polyethylene Glycol 4%, Kaolin Clay topped up to 100%.

[0044] The above formula was dry pulverized, granulated, dried and sieved according to the proportion to prepare 20% bensulfuron-methyl pendimethalin water-dispersible granules.

[0045] Formulation Example 4: 15% bensulfuron-methyl pendimethalin emulsion in water.

[0046] Bensulfuron-methyl 3%, pendimethalin 12%, N-methylpyrrolidone 12%, sodium dodecylbenzenesulfonate 8%, polyvinyl alcohol 4%, emulsifier 500# 7%, organic silicon 0.9% , make up to 100% with deionized water.

[0047] Dissolve the original drug, solvent, and emulsifier in the above formula into a uniform oil phase; mix the water-soluble components in the above formula with deionized water to obtain a water phase; under high-speed...

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PUM

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Abstract

The invention discloses a pesticide composition comprising bensulfuronmethyl and pendimethalin. The active constituents of the pesticide composition are bensulfuronmethyl and pendimethalin, and the ratio of bensulfuronmethyl to pendimethalin is (20:1) to (1:30) in parts by weight, preferably (10:1) to (1:20); and bensulfuronmethyl and pendimethalin after combination have obvious synergetic effect, and the use amount of the active constituent of a combined medicament is obviously reduced than exclusive use of bensulfuronmethyl and pendimethalin. The pesticide composition provided by the invention is suitable for preventing annual weeds of dry ricenursery fields of rice.

Description

technical field [0001] The pesticide composition involved in the present invention uses bensulfuron-methyl and pendimethalin as active ingredients, and is used for controlling annual weeds in dry rice seedling-raising fields. Background technique [0002] Chemical weeding is one of the main means of controlling weeds in agriculture. In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance. At the same time, when weeds occur, the grass phase is complex, not only annual and perennial weeds are mixed, herbs, vines and shrubs are mixed, but also the emergence of weeds is uneven, and young and old weeds occur alternately; so when the herbicide species are used alone , will show a certain aspect of defects and limitations. [0003] Bensulfuron-methyl is a selective systemic herbicide. The active ingredient can diffuse rapidly in water, be absorbed by the roots and leaves of the weed and transfer to the various parts of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N33/18A01P13/00
Inventor 刘鹏冷忠国陈佛祥
Owner GUANGDONG ZHONGXUN AGRI TECH
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