Killing effects of Several Fungus to Tobacco Beetles (breif report)

摘要

The present paper is about the killing effect test of four entomogenous fungus on tobacco beetle. The results showed, the tobacco beetle could be infected by the four fungus, but the best strain was a Beauveria bassiana which came from Guangxi province. It could cause half of the beetles dead in 10 days at 108spores/mL. The regressive equation about infection time, spores concentration and the lethal rate was constructed by SPSS software.