مطالعه فون سن هاي خانواده Anthocoridae در باغات پسته منطقه دامغان

The fauna of anthocorid bugs in pistachio orchards of Damghan region

Anthocorid bugs have been recognized as one of the most important predators of the pests in the world that they have high potential to limit the population density of insect pests including: aphids, scales, psyllids, hoppers, thrips, mites and .... This family has 400 species that high searching efficiency, ability of rapid increasing population in such situation where host is abundant, aggregating in areas with high host density and consuming of pollen in the absence of host are advantages of these agents.Agonoscena pistaciae is the most important pest of pistachio orchards in pistachio planting regions that the population density of this insect increased rapidly and reached high levels and causes considerable damage. This survey was carried out during 2004-2005 in pistachio orchards of Amirabad, Forat and Mehmandost areas of Damghan. The results indicated that four species Anthocoris nemoralis Fabricius, Anthocoris pilosus Jakovlev, Anthocoris nemorum Linnaeus and Anthocoris minki Dohrn belong to subfamily Anthocorinae are present on pistachio trees. This bugs feeds on pistachio psyllid nymphs. This predators havenʹt high population density in pistachio orchards of Damghan region. Sci.Res.Bio.J.of. Islam.Azad.univ.,Garmsar Branch. 2, 2:63-70, 2007