Study on the Entomopathogenic Fungi Verticillium Lecanii as Biological Control Agent

摘要

Naturally occurring entomopathogens are important regulatory factors in insect populations. Many species are employed as biological control agents of insect pest in crops and forestry. The advantages of use of microbial control agents are numerous , compared with conventional chemical pesticides. The research, development and untilization of biopesticides to control insect pest in agricultural production sounds the highlight study issue of the day. Verticillium lecanii is the species of entomopathogenic fungus which is widespread and parasitizes many insects , eg greenhouse whitefly ( Trialeurode vaporariorum) , aphids (Aphis gossypii , Myzus persicae ) and thrips etc. The Great Britain and Russia has developed commercial agent and batched process for application of Verticillium lecanii to control greenhouse whitefly and aphid in vegetable production. Recent years, the institution has cooperated with All-Russian Research Institute of Plant Protection on biological control. The major results facing entomopathogenic fungi Verticillium lecanii as biological control agent are as follows.