Aspergillus parasiticus and preparation method and application thereof

Abstract

The invention provides aspergillus parasiticus which is Aspergillus parasiticus RWSF001-02 which is preserved in Guandong Microbiological Culture Collection Center with the preservation number being GDMCC NO: 60080. The aspergillus parasiticus is screened from naturally dead aphids as a result of fungal parasitism. The aspergillus parasiticus and conidial powder containing the aspergillus parasiticus can be used for preparing an insecticide, and particularly has a relatively high preventing and treating rate on aphids, and the strain is good in production trait and fast to grow. The sporulation quantity of culture in a solid culture medium within 3-5 days can reach 8*10<8> / g.

Description

technical field [0001] The invention belongs to the technical field of pest biological control, and relates to a strain of Aspergillus parasitica and its preparation method and application. Background technique [0002] Since the invention of chemical pesticides, chemical pesticides have grown at an astonishing rate of 5% per year. Although chemical pesticides have played an important role in agricultural production and pest control in the past few decades, the extensive use of chemical pesticides has brought about a series of ecological and environmental problems such as serious drug resistance and pesticide residues. Long-term extensive use of chemical pesticides has led to an increase in drug-resistant pests. Especially in the past 10 years, the resistance of cotton bollworms, aphids, diamondback moths, and Spodoptera litura to pyrethroids and organophosphorus chemical pesticides has increased by hundreds or even Thousands of times. At the same time, the use of chemical...

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Problems solved by technology

At the same time, the application of chemical pesticides increases the amount of pesticide residues in agricultural products, seriously pollutes the environment, and endangers human health and life.

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