Pyraclostrobin, thiamethoxam and carboxin compound suspended seed coating and preparation method thereof

Abstract

The invention discloses a compound suspension seed coating agent composed of pyraclostrobin, thiamethoxam and rotaprol and a preparation method thereof, and relates to the technical field of insecticidal and fungicidal compositions for cotton crops. At least 5 parts of pyraclostrobin, 20 parts of thiamethoxam, 15 parts of ethoxylate, 3 parts of fatty alcohol polyoxyethylene ether, 5 parts of styrylphenol polyoxyethylene ether, 0.5 parts of xanthan gum, 0.5 parts of Sodium benzoate, 0.5 parts of defoamer and deionized water made up to 100 parts. The raw materials are pumped into the preparation tank for mixing and stirring, and then firstly ground by a colloid mill, then finely ground by a sand mill, sampled and analyzed, filtered, measured, packaged, and put into storage after passing the test. The present invention mixes the compounded 40% pyraclostrobin, thiamethoxam and wisterin compound suspension seed coating agent in a ratio of 5:20:15, which can play a significant synergistic role, while other The preparations that are mixed in proportion cannot reach the scope of obvious synergistic effect.

Description

technical field [0001] The invention relates to the technical field of insecticidal and fungicidal compositions for cotton crops, in particular to a compound suspension seed coating agent composed of pyraclostrobin, thiamethoxam and wisterin and a preparation method thereof. Background technique [0002] At present, the existing insecticidal and fungicidal compositions for the control of cotton blight and aphids, for example, the Chinese patent "CN105028458A" discloses a "pesticide composition" containing pyraclostrobin, prochloraz and thiazide Methmethoxam: relative to 1 weight part of pyraclostrobin, the content of prochloraz is 0.01-90 parts by weight, and the content of thiamethoxam is 0.01-90 parts by weight. Another Chinese patent "CN 104488950A" discloses a "suspension seed coating containing pyraclostrobin, shenzamycin and thiamethoxam", in which the active ingredients are pyraclostrobin, shenazamycin and thiamethoxam. The mass ratio of methoxazine is 1-80:80-1:1-80...

AI Technical Summary

Problems solved by technology

For example, the prepared suspending agent is easy to cause the product to stick, not easy to disperse and suspend in water, or block the nozzle, and precipitate in the sprayer, etc., resulting in uneven spraying and local phytotoxicity of the crops. The main reason is that the additives There are different defects in the selection of fillers

[0006] 3) Compounding problem, through the toxicity test, heat storage stability test and co-toxicity coefficient determination of several specific proportions disclosed by the above-mentioned several insecticidal and bactericidal compositions, it was found that no obvious synergistic effect could be achieved

Images