Harmful Insects And Their Control Methods In Cankiri Forests

Important insect species in Cankiri forest ecosystem were determined via pheromone traps, sticky traps and light traps, and also collection of insects from tree samples via periodical field studies. A total of 15 insect species have been determined to be main pests, which are Pine processionary moth, Thaumetopoea pityocampa (Den. & Schiff.) (Lepidoptera: Thaumetopoeidae), Common pine sawfly, Diprion pini L. (Hymenoptera: Diprionidae), European pine sawfly, Neodiprion sertifer (Geoffr.) (Hymenoptera: Diprionidae), Bark beetles (Fir bark beetle, Cryphalus piceae (Ratz.); Engraver beetle, Ips acuminatus (Gyll.); European bark beetle, Orthotomicus erosus (Woll.); Two-teethed pine beetle, Pityogenes quadridens (Hartig); Silver fir bark beetle, Ips (Pityokteines) curvidens (Germ.); Conifer ambrosia beetle, Trypodendron lineatus (Oliver) (Coleoptera: Scolytidae); European silver fir weevil, Pissodes piceae (Illig.) (Coleoptera: Curculionidae) at hardwood species, and Brown tail moth, Euproctis chrysorrhoea L. (Lepidoptera: Lymantriidae), Green oak tortrix, Tortrix viridana L. (Lepidoptera: Tortricidae), Willow scale insect, Chionaspis salicis, Poplar clearwing moth, Paranthrene tabaniformis (Rott.) (Lepidoptera: Sesiidae), Metallic wood borer, Melanophila picta (Pall.) (Coleoptera: Buprestidae) at softwood species. It was determined that a total of 15 insect species as main pests that 10 species to damage softwoods and 5 species to damage hardwoods in forest areas in Cankiri, and also certain biological, biotechnical, silvicultural and chemical control methods against these harmful insects have been suggested.