Mixture preparation of nitenpyram and abamectin and preparation method

Abstract

The invention discloses a mixture preparation of nitenpyram and abamectin and a preparation method. The mixture preparation comprises nitenpyram, abamectin, a cosolvent DMF (Dimethyl Formamide), an emulsifying agent I, an emulsifying agent II and a solvent. The preparation method comprises the following steps of: (1) weighing an abamectin active compound and putting into a container, adding dimethylbenzene and stirring; (2) adding the emulsifying agent I and the emulsifying agent II into the container, stirring and at the same time adding the cosolvent DMF; (3) after the abamectin active compound is substantially dissolved, adding a nitenpyram active compound, and stirring; (4) complementing the calculated volume by using the dimethylbenzene according to calculation, stirring till the prepared product is homogeneous and transparent. The mixture preparation is good in fast-acting property, long in lasting period and good in prevention and treat effect, and the amount of medicament is reduced; at the same time the environmental pollution is reduced; the preparation method has easily-accessible raw materials, is low in cost and convenient in machining in small insecticide factories; and meanwhile the machined preparation is wide in prevention and treatment range, and rice pests such as rice brown planthopper, sogatella furcifera, Chilo suppressalis and the like can be controlled.

Description

technical field [0001] The invention belongs to the technical field of pesticides, more specifically relates to a mixed preparation containing nitenpyram and avermectin, and also relates to a preparation method of a mixed preparation of nitenpyram and avermectin, which It is suitable for controlling rice pests such as brown planthopper, white-backed planthopper, and rice borer. Background technique [0002] Brown planthopper (Nilaparvata lugens ( )) belongs to Homoptera, Delphacidae. The brown planthopper has been an important pest of rice in my country and many Asian countries since 1970. The brown planthopper has long-distance migratory habits. It not only directly harms rice by sucking rice juice and laying eggs, but also spreads viral diseases, which easily damages a large area of ​​rice and brings great losses to agricultural production. Due to the short growth cycle, strong fecundity and long-distance migratory habit of brown planthoppers, brown planthoppers are pr...

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Problems solved by technology

The disadvantage is that the effect of controlling rice planthopper is poor

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