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Composition containing pyridaben

A composition and a technology for pyridaben, applied in the field of pesticides, can solve the problems of poor control effect of pyridaben and drug resistance of harmful mites, and achieve the effects of reducing medication costs, improving acaricidal effect, and delaying drug resistance of harmful mites

Inactive Publication Date: 2020-06-12
ZHEJIANG RES INST OF CHEM IND CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If pyridaben is used to control pest mites for a long time, it is easy for the pest mites to develop resistance to it, making the control effect of pyridaben worse and worse

Method used

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  • Composition containing pyridaben
  • Composition containing pyridaben
  • Composition containing pyridaben

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, the composition of pyridaben and pyrafenpyr

[0038] Table 1. Combined synergistic effect of the composition on Tetranychus cinnabarinus

[0039]

[0040] It can be seen from Table 1 that the composition provided by the present application has a co-toxicity coefficient greater than 120 in the weight ratio of pyridaben and pyrafenapyr in the range of 1-50:50-1, and shows synergistic effect on Tetranychus cinnabarinus effect. It is reasonable and feasible to mix pyrafencarb and pyridaben.

Embodiment 2、40

[0041] Example 2, 40% Fenfenpyrpyridaben Suspension Concentrate

[0042] Fenfenpyr 30%, pyridaben 10%, ethylene oxide propylene oxide block copolymer 3.5%, fatty alcohol polyoxyethylene ether 1%, xanthan gum 0.15%, silicone defoamer 0.4% , propylene glycol 5%, the balance is deionized water, firstly mix all the components evenly, then put them into the sand mill and grind them to a certain particle size, after high-shear mixing, prepare 40% pyrofenil · Pyridaben suspension.

[0043]The prepared 40% pyrafencarb-pyridaben suspension concentrate was applied to control citrus spider mites. The test site is Beilun District, Ningbo City, Zhejiang Province. 40% Fenfenpyr-Pyridaben Suspension Concentrate at the dose of 80 mg / kg active ingredient, the control effect on citrus spider mite was 97.3%, 98.5%, 96.2% at 3 days, 14 days, and 30 days after application . The control effect of the control agent 20% pyrafenpyr suspension concentrate on the citrus spider mite was 90.7%, 95.8%,...

Embodiment 3、60

[0044] Example 3, 60% pyrafenpyr-pyridaben water-dispersible granules

[0045] According to the formula of 40% pyrafefenacil, 20% pyridaben, 3% sodium lauryl sulfate, 12% naphthalene sulfonate, and the balance is soluble corn starch, each component is dry crushed and granulated , drying, and sieving to obtain 60% pyrafencarb-pyridaben water-dispersible granules.

[0046] The prepared 60% pyrafencarb-pyridaben water-dispersible granule was applied to cotton spider mite. The test site is Anyang City, Henan Province. At the dose of 80 mg / kg active ingredient of 60% pyrafenpyr pyridaben water-dispersible granule, the control effects on cotton spider mite were 96.5%, 97.8% at 3 days, 14 days, and 30 days after treatment. %, 95.2%. The control effect of control agent 20% pyraclofenac suspension concentrate on cotton spider mite was 91.3%, 95.6% and 90.7% respectively at the dose of 80 mg / kg active ingredient, 3 days, 14 days and 30 days after the drug treatment. The medicament 1...

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Abstract

The invention discloses a composition containing pyridaben and a farm chemical named as Chinese characters 'Zuomimanjing' in a weight ratio of (1-50): (50-1). The composition provided by the inventionhas the characteristics of high efficiency, low toxicity and long lasting period, and is suitable for preventing and controlling mite pests.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a composition containing pyridaben and pyrafenapyr. Background technique [0002] Agricultural pest mites are small in size, fast in reproduction, strong in adaptability, and easy to develop resistance. They mainly harm leaves, young shoots, flower buds and fruits. When the number of pest mites increases sharply, it will cause plant defoliation, growth inhibition or even death. One of the most difficult pests to control. And long-term use of a chemical agent is easy to make the harmful mites develop resistance. [0003] For example, pyridaben is a pyridazinone acaricide, which can inhibit the synthesis of glutamate dehydrogenase in the chromosomes of muscle tissue, nerve tissue and electron transfer system, so as to play the role of killing insects and mites. The contact killing effect is mainly to kill eggs, and has a certain effect on adult mites and nymphs. It is the most widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/58A01N43/56A01P7/02
CPCA01N43/56A01N43/58
Inventor 郁季平刘燕君汪建良许天明魏优昌钟良坤
Owner ZHEJIANG RES INST OF CHEM IND CO LTD
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