گزارش قارچ بيمارگر حشرات PAECILOMYCES LILACINUS از روي سوسك سرشاخه خوار رز DSPHRANTERIA C؟RULESCENS در ايران

Report of the entomopathogen fungus Paecilomyces lilacinus on Osphranteria coerulescens from Iran.

During the research carried out on evaluating the resistance and susceptibility of different genotypes of damask rose; Rosa damascene against Osphranteria coerulescens, and efficacy of associated natural enemies, white mycelia of a fungus was observed on dead larvae of the pest. Infected branches carrying pest larvae were cut and transferred to the laboratory in late winter 2005. The branches were opened and number of the dead larvae was recorded for every genotype. The fungus was cultured on PDA media and was purified later by single spore method. According to the macroscopic and microscopic characteristics, especially colony color of the fungi and form of phialids, the fungus was identified as P.liliacinus (Thorn) Samson. This fungus is hereby reported for the first time from Iran. Pthogencity of the fungus on O. coerulescens larvae is also reported firstly from Iran as well as for the world.