Entomopathogenic fungi have been used as important part of integrated pest management program to control aphid. In particular, Beauveria bassiana was distributed throughout the world including temperate and tropical area, various habitats from alpine soil, desert soil to running water and both insect and plant. Especially the fungus has also been isolated from the surface and the interior of plants and act as natural control agent. Viability of fungi on the plant surface may be influenced by temperature, humidity, sunlight and plant type as well as fungal isolate. Persistence of treated fungal control agent on phylloplane and control efficacy may differ from environmental conditions and isolates. In this study, we investigated the persistence of an B. bassiana which is developing as prototype wettable powder to control cotton aphid, and the residual efficacy of the prototype on cucumber under three different greenhouse conditions.

• Tae Young Shin(Agricultural Microbiology Division, National Institute of Agricultural Sciences)
• Byung Ju Lee(Agricultural Microbiology Division, National Institute of Agricultural Sciences)
• Ji Hee Han(Agricultural Microbiology Division, National Institute of Agricultural Sciences)
• Jeong Jun Kim(Agricultural Microbiology Division, National Institute of Agricultural Sciences)
• Sang Yeob Lee(Agricultural Microbiology Division, National Institute of Agricultural Sciences)