Spirotetramat and bifenazate compound suspending agent and preparation method thereof

Abstract

The invention provides a spirotetramat and bifenazate compound suspending agent and a preparation method thereof, and relates to the technical field of apple red spider prevention and control. According to the present invention, 100 parts of the spirotetramat and bifenazate compound suspending agent is prepared from at least 10 parts of spirotetramat, 20 parts of bifenazate, 3 parts of f fatty alcohol polyoxyethylene ether, 3 parts of styrylphenol polyoxyethylene ether, 0.3 part of xanthan gum, 0.4 part of sodium benzoate, 0.3 part of an antifoaming agent, and the balance of deionized water; the preparation method comprises: sucking all raw materials into a preparation kettle, carrying out mixing stirring, carrying out primary grinding with a colloid mill, carrying out fine grinding with a sand mill, sampling and analyzing, filtering after achieving the qualified standard, metering, packaging, and warehousing; and the obvious synergistic effect can be provided when the 30% spirotetramat and bifenazate compound suspending agent is subjected to mixing use according to the ratio of 1:2 while the obvious synergistic effect cannot be achieved with the other preparations being subjected to the mixing use according to a certain ratio.

Description

technical field [0001] The invention relates to the technical field of apple tree red spider control, in particular to a compound suspending agent of spirotetramat and bifenazate and a preparation method thereof. Background technique [0002] At present, the existing insecticidal composition for preventing and treating red spider mites in apple trees, for example, Chinese patent "CN101297646A" discloses a "acaricide composition containing spirodiclofen and its application", including: A) the first The active ingredient spirodiclofen, B) the second active ingredient propargite, the weight ratio of the first active ingredient to the second active ingredient is 0.01-10:1. Another Chinese patent "CN101176451A" discloses a "Pyridaben Suspension Concentrate for Killing Mites", which includes by mass: 3-60 parts of pyridaben, 1-47 parts of additives, 15-58 parts of water . [0003] The inventor has verified through long-term experiments that the above-mentioned several insecticid...

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Problems solved by technology

For example, wettable powder is easy to cause product sticking, is not easy to disperse and suspend in water, or clogs the nozzle, and causes precipitation in the sprayer, resulting in uneven spraying

[0006] 3), the problem of compounding, by carrying out toxicity test, heat storage stability test and mixing co-toxicity coefficient measurement on several specific proportions disclosed by the above-mentioned several insecticidal compositions, it is found that no obvious synergistic effect can be achieved

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