Comparison of the Controlling Effeciency for Suppressing Grubs in Peanut Fields Using three Biocides

This paper dealt with biocontrolling the peanut grubs using the three biocides, Bacillus thuringienses, Metarhizium anisopliae and Paecilomyces fumosoresens var.beijingensis.The results showed that the controlling effeciency was up to 82%on average by using the three biocides,a-mong which the M.anisopliae was the best.The yield of peanut increased up to 20%on average,in which using P.fumosoresens was the most significant.The biocide can not only control the peanut grub but also increase the peanut yield.