Dinotefuran and isoprocarb compound suspending agent and preparation method thereof

Abstract

The invention discloses a dinotefuran and isoprocarb compound suspending agent and a preparation method thereof, relating to the technical field of control of plant diseases and insect pests of rice and ornamental flowers. The compound suspending agent is prepared from the following components in parts by weight: 6 parts of dinotefuran, 24 parts of isoprocarb, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of phenethyl phenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of an antifoaming agent and 60.7 parts of deionized water. The preparation method comprises the following steps: introducing all the raw materials into a preparation vessel, mixing and stirring, performing preliminary grinding on the mixture by virtue of a colloid mill, performing fine grinding by virtue of a sand mill, sampling, analyzing, filtering, metering, packing and warehousing after the product is qualified. The 30% dinotefuran and isoprocarb compound suspending agent is formed by mixing dinotefuran and isoprocarb according to a ratio of 1:4, an obvious synergistic effect can be achieved, and the other preparations mixed according to the ratio cannot achieve the obvious synergistic effect. Meanwhile, the actual toxicity of different ratios is not improved along with increase of theoretical toxicity, and regular change does not exist between the actual toxicity and the theoretical toxicity.

Description

technical field [0001] The invention relates to the technical field of disease and insect pest control of rice and ornamental flowers, in particular to a dinotefuran and isoprocarb compound suspending agent and a preparation method thereof. Background technique [0002] At present, the existing insecticides used for the control of rice and ornamental flower diseases and insect pests, especially for the control of rice planthopper and ornamental flower thrips, for example, Chinese patent "CN 102415404A" discloses a "containing dinotefuran and iso A compound insecticidal composition of Procarb and its use", wherein dinotefuran and isoprocarb are used as active ingredients, wherein the weight ratio of dinotefuran and isoprocarb is 0.1-80:0.5-80. [0003] The inventor has verified through long-term experiments that the compound insecticidal composition mainly has the following defects: [0004] 1), by testing several specific proportions disclosed by the above-mentioned compoun...

AI Technical Summary

Problems solved by technology

For example, wettable powder is easy to cause product sticking, not easy to disperse and suspend in water, or block the nozzle, and cause precipitation in the sprayer, resulting in uneven spraying and easy to cause phytotoxicity in rice leaves and other parts

[0006] 3), the problem of compounding, through the toxicity test, heat storage stability test and the determination of the mixed co-toxicity coefficient of several specific proportions disclosed by the above-mentioned compound insecticidal composition, it is found that no obvious synergistic effect can be achieved

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