Acaricide composition containing pyraclostrobin and spirocyclic tetronic acid pesticide

A technology of spirotetraketone and composition, which is applied in the field of acaricidal composition, and can solve the problems of pest resistance and poor control effect

Inactive Publication Date: 2020-10-20
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

[0006] Although pyrofenfen has high biological activity against adult mites, nymphs, and eggs, if it is used for a

Method used

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  • Acaricide composition containing pyraclostrobin and spirocyclic tetronic acid pesticide
  • Acaricide composition containing pyraclostrobin and spirocyclic tetronic acid pesticide
  • Acaricide composition containing pyraclostrobin and spirocyclic tetronic acid pesticide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1, the combined synergistic effect of pyrafencarb and spirodiclofen composition on Tetranychus cinnabarinus

[0050] Table 1. Compositions of pyraprofen and spirodiclofen against Tetranychus cinnabarinus

[0051] (Tetranychus Cinnabarinus) Joint Synergy

[0052]

[0053]

Embodiment 2

[0054] Example 2, the combined synergistic effect of the pyrafencarb and spiromethin composition on Tetranychus cinnabarinus

[0055] Table 2. Compositions of pyrafefenacil and spiromethifen have effects on Tetranychus cinnabarinus

[0056] (Tetranychus Cinnabarinus) Joint Synergy

[0057]

[0058]

[0059] It can be seen from Table 1-2 that when the mass ratio of pyrafenfenil and spirotetratonic acid pesticides (spirofen and spiromethen) is 50:1 to 1:50, the co-toxicity coefficients are greater than 120, showed synergistic effect on Tetranychus cinnabarinus. It is reasonable and feasible to mix pyrofenpyr and spirotetronic acid pesticides.

[0060] 2. The preventive effect of the dosage form

Embodiment 3、40

[0061] Example 3, 40% Fenfenpyr-Spirofen Suspension Concentrate

[0062] 20% of pyraclofenac, 20% of spirodiclofen, 4% of sodium naphthalenesulfonate formaldehyde condensate, 2% of fatty alcohol polyoxyethylene ether, 0.15% of xanthan gum, 0.3% of silicone defoamer, 5% of propylene glycol %The balance is the formula of deionized water. Mix all components evenly, then add them to a sand mill and grind them to a certain particle size, and mix them with high shear to prepare 40% fenfencarb-spirofen-suspended agent.

[0063] The prepared 40% pyrafencarb-spirofen suspension concentrate was applied to control citrus spider mite. The test site is Beilun District, Ningbo City, Zhejiang Province. 40% difenfenapyr-spirofen-suspension concentrate at the dose of 80 mg / kg active ingredient, the control effects on citrus spider mite were 95.7%, 97.6% and 95.8% at 3 days, 14 days and 30 days after treatment . The control effect of 20% pyrafenapyr suspension concentrate on citrus spider m...

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PUM

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Abstract

The invention discloses a composition containing pyraclostrobin and pyrethroid pesticide spirocyclic tetronic acid pesticide. The weight ratio of pyraclostrobin to spirocyclic tetronic acid pesticidein the composition is (1-50): (50-1). The invention also provides an acaricide containing the composition. The provided composition and acaricide 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] Fenfenpyr has the following structural formula (I), which is an acaricide of the acrylonitrile type, which is converted into a hydroxyl compound through metabolism, and then ac...

Claims

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Application Information

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IPC IPC(8): A01N43/56A01N43/12A01P7/02
CPCA01N43/12A01N43/56
Inventor 郁季平胡冬松魏优昌钟良坤许天明邢家华
Owner ZHEJIANG RES INST OF CHEM IND CO LTD
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