The survey of oak wood borer beetles and natural enemeis in the forest of Ilam Province

Iranian oak forms the dominant forest cover of Ilam province located in the South-Western region of Iranwhere by effect of climatic conditions changes and incidence of numerous drought, the oak wood borer in a rush manner mode and have been caused the damage to these trees.This research was carried out in order to identification of Oak wood borer, natural enemies and normal efficacy rate of oak wood borer Parasitoids during connective three years (2011-2014). With survey of desert investigations by splitting the dry and semi-dry oak woods were done and different growth phases of oak wood borer separately in two health and parasitoid groups monthly have been investigated. For investigating the adult oak wood borer and parasitoids, samples from contaminated trunks and branches to wood borer in the breeding chambers in the dimension of 10-15 m2 were kept. The result show wood borer pest spices including Cerambyx cerdo (Col., Cerambycidae(, Macrotoma scutellaris (Col., Cerambycidae(, Chalcophorella bagdadensis (Col., Buprestidae(, Agrilus hastulifer(Col., Buprestidae(,Chrysobothris parvipuncta(Col., Buprestidae(,Lampetis mimosa(Col., Buprestidae(.The fungus of Beauveria bassiana and foure species of parasitoids wasps including Trigonura ninae (Hym.: Chalcididae), Atanycolus sp. (Hym.: Braconidae) Oodera formosa(Hym.: Pteromalidae) , Pristaulacus compressus (Hym. : Aulacidae) were identificated.The efficacy of wasps in the host larva phase 2.1 percent and fungus efficacy in the larva and adult insects was 1.5 and 1.1 percent.