Study on chemical constituents in Cryptotaenia japonica Virulence of Beauveria bassiana against Takecallis taiwanus(Takahashi) Expression and Determination of Activity of the Point Mutated Arabidopsis Acetohydroxyacid Synthase Functional response of predatory thrips Scolothrips takahashii Prisener to Tetranychus viennensis Zacher STUDIES ON THE CONTROL THRESHOLD OF THE SILK TREE SCALE (AONIDIELLA SOTETSU (Takahashi))