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Acaricidal composition containing Zuomimanjing and hexythiazox

A composition and technology of hexythiazox, applied in the field of pesticides, can solve the problems of poor control effect and the like, and achieve the effects of reducing the dosage, delaying the drug resistance of harmful mites, and reducing the cost of medication

Inactive Publication Date: 2020-10-16
ZHEJIANG RES INST OF CHEM IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In long-term use, pests have developed resistance to hexythiazox, making the control effect worse and worse

Method used

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  • Acaricidal composition containing Zuomimanjing and hexythiazox
  • Acaricidal composition containing Zuomimanjing and hexythiazox
  • Acaricidal composition containing Zuomimanjing and hexythiazox

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1, the combined synergistic effect of composition on Tetranychus cinnabarinus

[0046] Table 1. Combined synergistic effect of the composition on Tetranychus cinnabarinus

[0047]

[0048] It can be seen from Table 1 that the co-toxicity coefficients of the compositions containing pyrafefenacil and hexythiazox are all greater than 120 in the mass ratio of 1 to 50 to 50 to 1, and they all show a synergistic effect on Tetranychus cinnabarinus . It is reasonable and feasible to mix pyrafenpyr and hexythiazox.

[0049] 2. The preventive effect of the dosage form

Embodiment 2

[0050] Example 2, 32% Fenfenpyr-Hexythiazox Suspension Concentrate

[0051]24% pyraclofenac, 8% hexythiazox, 4% rosin block polyoxyethylene ether polyoxypropylene ether sulfonate, 21% ethylene oxide propylene oxide block copolymer, 0.15% xanthan gum , 0.3% silicone defoamer, 5% propylene glycol, and the balance is deionized water. Mix all components evenly, then add them to a sand mill and grind them to a certain particle size, and prepare them after high-shear mixing. 32% Fenfenpyr-Hexythiazox Suspension Concentrate.

[0052] The prepared 32% pyraprofen-hexythiazox suspension concentrate was applied to control citrus spider mite. The test site is Beilun District, Ningbo City, Zhejiang Province. 32% pyrafenpyr·hexythiazox suspension concentrate at the dose of 80 mg / kg active ingredient, the control effect on citrus spider mite was 97.6%, 98.7% and 98.2% at 3 days, 14 days and 30 days after treatment . The control effect of the control agent 20% pyrafenpyr suspension concen...

Embodiment 3、60

[0054] Example 3, 60% Fenfenpyr-Hexythiazox Water-Dispersible Granules

[0055] According to the formula of 45% pyrafefenacil, 15% hexythiazox, 3% sodium lauryl sulfate, 8% lignosulfonate, and kaolin as the balance, each component is dry crushed, granulated, Dried and sieved to obtain 60% fenpyrofen-hexythiazox water-dispersible granules.

[0056] The prepared 60% pyrafenpyr-hexythiazox 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·hexythiazox water-dispersible granules, the control effects on cotton spider mite were 96.8%, 98.4% at 3 days, 14 days, and 30 days after treatment. , 97.8%. The control effect of control agent 20% pyraprofen suspension concentrate on cotton spider mite was 91.3%, 95.6% and 90.7% at the dose of 80mg / kg active ingredient, 3 days, 14 days and 30 days after drug application respectively. The control effect of 5% hexythiazox emuls...

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Abstract

The invention discloses a composition containing Zuomimanjing and hexythiazox in a weight ratio of 1-50:50-1. The invention also provides an acaricide containing the composition. The composition and the acaricide provided by the invention are suitable for preventing and treating mites.

Description

technical field [0001] The invention belongs to the field of pesticides and relates to an acaricide composition. Background technique [0002] Agricultural pest mites are small in size, fast in reproduction, strong in adaptability, and easy to develop resistance. They are one of the most difficult pests to control. They harm the leaves, young shoots, flower buds and fruits of plants. When the number of insects increases sharply, it will cause plant damage. Falling leaves, stunted growth or even death. [0003] In order to more effectively prevent and control harmful mites and delay plant resistance to acaricides, it is a better way to compound and combine acaricides with different mechanisms of action in order to obtain better and efficient product formulas for use in Control of pest mites. [0004] Hexythiazox is a thiazolidinone acaricide, which can inhibit the chitin synthesis of pests and interfere with the metabolism of pests. It has a good control effect on eggs, lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01N43/56A01P7/02
CPCA01N43/56A01N47/38
Inventor 胡冬松郁季平魏优昌钟良坤邢家华许天明
Owner ZHEJIANG RES INST OF CHEM IND CO LTD
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