Pathogenicity of The Entomopathogenic Fungus, Purpureocillium lilacinum TR1 Against Ambrosia Beetles, Xylosandrus germanus (Blandford) and Xyleborus dispar (Fabricius) (Coleoptera: Curculionidae: Scolytinae)

Abstract : 

Xylosandrus germanus and Xyleborus dispar (Coleoptera: Curculionidae: Scolytinae) should be considered a high-risk quarantine pest. These ambrosia beetles are very polyphagous. It attacks many deciduous trees, probably all in its distribution range. Chemical control of them is very difficult and expensive due to its protected breeding sites and its resistance to many insecticides. In this study, it is searched the effects of entomopathogenic fungi, [Purpureocillium lilacinum TR1 (syn: Paecilomyces lilacinus)] on the BTBB and PBB adults in three conidial suspensions (106, 107and 108cfu ml-1) in laboratory conditions. The data for mortality was recorded after 2, 4, 6 and 8 days intervals. The mortality rate was found respectively after 8 days %94.72 for Xylosandrus germanus and %100 for Xyleborus dispar in 108cfu ml-1. It will be appropriate that the results obtained from this first study performed in laboratory conditions should also to be tried in the field conditions for the control of ambrosia beetles, Xylosandrus germanus and Xyleborus dispar. It is hoped that the study will be helpful in the control strategies of this beetle species that will be put forward in a future time. It is seen that after having obtained hopeful results from this study, making similar works on the other beetle species are also necessary


Keyword : 

Entomopathogenic fungi, Purpureocillium lilacinum, Xylosandrus germanus, Xyleborus dispar, Ambrosia beetles


Author(s) : , S. Toksöz, E. Oksal, İ. Saruhan, İ. Kepenekci
Downloads : 238


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