بررسی دشمنان طبیعی پسیل پسته Agonoscena pistaciae ( Hem.: Psyllidae ) در شهرستان نیشابور

Common pistachio psyllid (Agonoscena pistaciae Burckhardt & Lauterer, 1989) is key pest of pistachio trees of pistachio trees, in Razavi Khorasan province, and it has many natural enemies. The purpose of this research was to collect and identify the natural enemies of psyllid in pistachio farms of Nishabour. For this purpose, in the pistachio orchards of Neyshabur County, infected orchards with psylla were selected from each region. Each orchard was monitored every week and predators and parasitoids were collected by different sampling methods including insect net, suction tube and tapping on a white tray. The results of this research showed that the identifed ladybugs include the species Coccinella septempunctata (L.), Parexochomus nigromaculatus (Goeze), Adalia bipunctata (L.), Hippodamia variegata (Goeze), Coccinella undecimpunctata (L.) and Menochilus sexmaculatus (Fabricius). Moreover, other species of predatory insects such as green lacewing Chrysoperla carnea (Stephens); and the bug of the predator Anthocoris minki pistaciae Wagner, 1957 were collected and identified. Also, the parasitoid wasp Psyllaephagus pistaciae Ferrière was collected and identified as the dominant species in terms of population abundance from the mummified nymphs of psylla. In the examination of the wasps removed from the mummified nymphs of psyll, one hyperparasitoid wasp species named Syrphophagus aphidivorus (Mayr) was also identified. This research showed that the natural enemies of this pest had a rich variety in Nishabour.