Compound chlorpyrifos and cypermethrin missible oil and preparation method thereof

Abstract

The invention discloses a compound emulsifiable concentrate of chlorpyrifos and cypermethrin and a preparation method thereof, and relates to the technical field of prevention and control of apple tree and peach borer. Based on 1L, at least 475g chlorpyrifos, 47.5g cypermethrin, 65g tristyrylphenol polyoxyethylene ether, 85g distyrylphenol formaldehyde condensate polyoxyethylene ether, 110g calcium dodecylbenzenesulfonate and supplemented to 1L of xylene. Add chlorpyrifos and cypermethrin into xylene and stir until they are all dissolved, then add tristyrylphenol polyoxyethylene ether, distyrylphenol formaldehyde condensate polyoxyethylene ether and calcium dodecylbenzenesulfonate and pass through the reaction kettle Stir and mix evenly, take a sample to analyze the content, let it stand, filter, pack, and take another sample to analyze the content after passing the test, and put it into the warehouse after passing the test. The present invention mixes the compounded chlorpyrifos and cypermethrin compounded emulsifiable concentrate at a ratio of 10:1 at a rate of 522.5 g / L, which can achieve obvious synergistic effects.

Description

technical field [0001] The invention relates to the technical field of apple tree and peach borer control technology, in particular to a compound emulsifiable concentrate of chlorpyrifos and cypermethrin and a preparation method thereof. Background technique [0002] At present, the existing insecticidal composition for the control of apple tree peach borer, for example, the Chinese patent "CN102228053 A" discloses an "insecticidal composition containing fluoride urea and pyrethroid compounds", which contains active Insecticidal composition of component A and active component B, active component A is selected from fluorourea, active component B is selected from any one of the following compounds: deltamethrin, bifenthrin, and active component A, active component B The ratio of parts by weight is 1:60~60:1. In addition, the Chinese patent "CN 101720777 A" discloses a "mixed pesticide preparation of emamectin benzoate and beta-cyfluthrin", which consists of 0.13% to 0.28% ema...

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Problems solved by technology

For example, the prepared 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, etc., resulting in uneven spraying and local phytotoxicity of crops. The main reason is that it helps There are different defects in the selection of agents and fillers

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

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