Isaria fumosorosea wettable powder as well as preparation method and application thereof

Abstract

The invention discloses isaria fumosorosea wettable powder as well as a preparation method and an application thereof. The isaria fumosorosea wettable powder comprises the following components by mass percent: 5%-20% of isaria fumosorosea conidiophore powder, 3%-5% of wetting agent, 3%-5% of dispersing agent, 0.1%-0.5% of ultraviolet protective agent, and the balance of carrier. The isaria fumosorosea is an isaria fumosorosea strain SCAU-IFCF02 which is preserved in China Center for Type Culture Collection on November 1, 2013 with the preservation number CCTCCNO: M2013526. The isaria fumosorosea wettable powder is mainly used for preventing and treating brassicaceous vegetable pests, has good effect in preventing and treating pests such as plutella xylostella and the like, and has the advantages of high insecticidal activity, stable effect, lasting effect, small impact on environment, and convenience in use.

Description

technical field [0001] The invention relates to the field of pollution-free pesticide preparations. More specifically, it relates to a wettable powder of I. fumigatus and its preparation method and application. Background technique [0002] Entomopathogenic fungi are an important part of insecticidal microorganisms, accounting for more than 60% of entomopathogenic microorganisms. The extensive development and utilization of microbial pesticides can effectively reduce and eliminate many negative effects such as residues, toxicity and drug resistance, which are common in current chemical pesticides. Rose smoke-colored Isospora ( Isaria fumosorosea ) is an important entomopathogenic fungus that can cause pest death. It is widely distributed in tropical, subtropical and temperate regions and has a wide range of hosts. There are 25 different families of insects recorded, including Homoptera, Diptera, Lepidoptera, A variety of vegetables, fruit trees and tea tree pests of the o...

AI Technical Summary

Problems solved by technology

Although these existing preparations of I. fumigatus have achieved better control effects on pests, like other biocontrol fungi, these preparations still have the shortcoming of slow insecticidal speed, which seriously restricts their use in the field. Applications

[0004] Because of its wide host range, strong prevalence, and safety to humans, animals, and the environment, I. fumigatus has been used by researchers as the main means of pest control for a long time. Slow, the control effect is greatly affected by environmental conditions, the adhesion is not good, the control effect is very unstable, etc.

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