Trunk injection insecticidal micro-emulsion granules for preventing and controlling tree pests, preparation method and application thereof

Abstract

The invention discloses trunk injection insecticidal micro-emulsion granules for preventing and controlling tree pests, a preparation method and an application thereof. The insecticidal micro-emulsiongranules contain the following components, by weight percent, active ingredients 9.5-12.5%, emulsifier 9.5-14.5%, co-solvent 6-8% and filler 65-72%, wherein the active ingredients are emamectin benzoate and/or neonicotinoid insecticides, and the weight percent of the above components is based on the total weight of the insecticidal micro-emulsion granules. According to the insecticidal micro-emulsion granules, a novel solid preparation is prepared by adjusting the contents of the active ingredients, the emulsifier, the co-solvent and the filler, wherein the novel solid preparation has a certain shape and good physicochemical stability, and can be effectively absorbed by plant tissues and passed to a target location by virtue of transpiration and diffusion in the tree body.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to an insecticidal microemulsion for injection for preventing and controlling tree pests, and also relates to a preparation method and application of the insecticidal microemulsion for injection. Background technique [0002] With the development of urbanization in my country, the urban green area is expanding year by year. As of 2004, the green coverage area of ​​my country's urban built-up areas reached 1.812 million hectares, and the urban per capita park green area reached 13.08 square meters. The green coverage rate and green area rate of my country's urban built-up areas reached 40.22% and 36.29% respectively. The local government even regards creating a "garden city, a livable city" as its main goal. Among them, tall trees account for a large proportion of green vegetation in urban built-up areas. However, due to climate change in recent years, forest disease...

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Problems solved by technology

The dry injection application method of this liquid preparation can effectively control various insect pests of trees, but there are also shortcomings: first, the liquid preparation injection dry application must use a bottle as a carrier, and the plastic bottle left over after the application will be It causes secondary pollution and affects the environment; secondly, the emulsifiable concentrate contains a large amount of organic solvents, and the use of dry injection will cause phytotoxicity and damage trees; thirdly, this method is currently widely used in mountain forests, and has not yet been applied to street trees. The prevention and control of tree diseases and insect pests in cities is mainly because the use in cities may cause poisonous damage to the human body due to pedestrians' mishandling and other reasons.

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