DETERMINATION OF THE NATURAL ENEMIES OF DIPRION PINI L. (HYMENOPTERA: DIPRIONIDAE) IN CANKIRI, TURKEY

The egg parasitoid Neochryocharis formosa (Westwood 1833) (Hymenoptera: Eulophidae), cocoon parasitoids Pleolophus basizonus (Grav.), Exenterus oriolus Htg. (Hymenoptera: Ichneumonidae), Dahlbominus fuscipennis (Zetterstedt) (Hymenoptera: Eulophidae) and Exhyalanthrax afer Fabr. (Diptera: Bombyliidae) were determined as a result of this study carried out in order to determine the natural enemies of Diprion pini L. (Hymenoptera: Diprionidae) between 2003 and 2004 for the first time in Kalfat (Orta, Cankiri, Turkey) and Kursunlu (Cankiri, Turkey) Scots pine (Pinus sylvestris L.) forests. Evaluation of effectiveness of natural enemies determined in this study shows that the egg parasitoid N.formosa emerged from D.pini eggs collected from Kursunlu forest has the highest effectiveness (28-100%) on the pest population. Effectivenesses of cocoon parasitoids were found as 12% for Pleolophus basizonus, %3 for Exenterus oriolus. The hyper parasitoid species Exhyalanthrax afer emerged from 5% of D.pini cocoons. All of the cocoon parasitoids (Pleolophus basizonus, Exenterus oriolus, Exhyalanthrax afer, Dahlbominus fuscipennis) and the egg parasitoid (Neochrysocharis formosa) is determined on D.pini for the first time in Turkey.