eng International Academy of Ecology and Environmental Sciences Arthropods 2224-4255 2015-9-1 4 3 90 97 3 article Yayan Sanjaya 1 2 Virginia R. Ocampo 1 2 Barbara L. Caoili 1 2 Biology program and Graduate School, Indonesia University of Education Crop Protection Cluster, College of Agriculture, University Philippines Los Banos, College, Laguna 4031 Philippines Characteristic of entomopathogenic fungus to Tetranychus kanzawai was investigated. Three selected isolates of Beauveria bassiana, from Philippines and Indonesia were evaluated. The following aspect was investigated: (1) Investigate infection process on each fungal against mite. In this experiment, adult mites exposed by spraying to 10^8 per ml concentrations of conidia observing by light microscope and Scanning Electron Microscopy (SEM). The result found T. kanzawai was very susceptible to three isolates B. bassiana which the end of the trials, fungal growth was detectable as early as 2 until 4 day observation. Infection process with microphotograph and SEM showed attachment, germination and penetration, extrusion and conidiogenesis fungal form. http://www.iaees.org/publications/journals/arthropods/articles/2015-4(3)/infection-process-of-entomopathogenic-fungi-Beuveria-bassiana.pdf Tetranychus kanzawai Beauveria bassiana light microscopy Scanning Electron Microspopy (SEM)