Many turfgrass pests, Ectinohoplia rufipes, Exomala orientalis and Popillia quadriguttata, cause serious damage to grass fields in Korea. In this study, control of turfgrass pests using entomopathogenic fungi were investigated using Protaetia brevitarsis seulensis as an alternative insect. In a preliminary experiment, some Metathizium sp. showed ca. 60% virulence after 7 days exposure to the entomopathogenic fungi. Compared to the contact-exposure, overall a spray treatment showed lower control efficacy against P. brevitarsis seulensis. Furthermore, mortality of various developmental stages of P. brevitarsis seulensis was investigated under laboratory conditions. This work suggests that when treated with fungi mortality of P. brevitarsis seulensis was closely related with developmental stage. These results provide a basic information for the control of P. brevitarsis seulensis using entomopathogenic fungi

• Sihyeon Kim(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University)
• Seok Ju Lee(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University)
• So Eun Park(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University)
• Jong Cheol Kim(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University)
• Mi Rong Lee(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University)
• Se Jin Lee(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University)
• Jae Su Kim(Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University Plant Medical Research Center, Chonbuk National University)