Dinotefuran dispersible oil suspension agent and preparation method thereof

Abstract

The invention discloses a dinotefuran dispersible oil suspension agent. The dinotefuran dispersible oil suspension agent is prepared from 20-30% of dinotefuran, 4-6% of polyoxyethylene octylphenol ether, 4-6% of calcium dodecyl benzene sulfonate, 4-6% of phenethyl phenylpropyl phenol polyoxyethylene ether, 0.8-1.2% of organobentonite, 0.8-1.2% of white carbon black, 0.1-0.5% of citric acid, 0.1-0.5% of dihydrogenated tallow phthalic acid amide, 0.1-0.5% of tris(2,4-di-tert-butyl-pheny)phosphite, 0.1-0.5% of 2-n-octyl-4-isothiazolin-3-one, 0.1-0.5% of HT-508 organosilicone, 18-22% of soybean oil and the balance methyl oleate. The dinotefuran dispersible oil suspension agent is stable in performance, high in adhesion, good in spreading performance and high in rain wash resistance, has an obvious synergistic effect on target matter and contains no synergist, a medium can be degraded, dust is avoided in the production and use process, pollution is not likely to be caused to the environment and the human, the pesticide effect of dinotefuran can be fully exerted, the dose can be reduced, cost can be reduced, development of the resistance of pests to dinotefuran can be retarded, and the dinotefuran dispersible oil suspension agent has obvious economic and social benefits and good development prospects.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparation processing, and relates to a preparation method of dinotefuran dispersible oil suspension. Background technique [0002] Dinotefuran is a new neonicotinoid insecticide developed by Mitsui East Asia Chemical Co., Ltd., Japan. It has been introduced to the market in many countries around the world, and is used to control aphids, leafhoppers and their resistant strains in various crops such as rice. Chinese patent 201410406274.0 discloses a dispersible oil suspension containing pymetrozine and dinotefuran, including 5-60% of the first active ingredient pymetrozine and 5-50% of the second active ingredient dinotefuran, The piercing-sucking mouthparts showed good control effect. Chinese patent 201510034620.1 discloses a dinotefuran synergistic suspending agent, including dinotefuran 20%-50% and synergist 2%-5%. The dinotefuran synergistic suspending agent has low surface tension and stro...

AI Technical Summary

Problems solved by technology

Chinese patent 201510034620.1 discloses a dinotefuran synergistic suspending agent, including dinotefuran 20%-50% and synergist 2%-5%. The dinotefuran synergistic suspending agent has low surface tension and strong drug efficacy , the field test shows that the dinotefuran synergistic suspension of the present invention has a significant insecticidal effect, but the content of dinotefuran in the suspension is relatively high, a synergist needs to be added, and water is used as a solvent, so it is not easy to adhere to the wax Or smooth leaf surface, the ability to resist rain erosion is weak in practical applications

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