معرفي گونه هاي جديدي از پروانه هاي زيان آور جنگل هاي پسته خراسان و جنبه هايي از زيست شناسي آنها

Introducing of some new injurious Lepidoptera from Pistachio forests in Khorasan province and some aspects of their biology

During 2001-2003, a survey was carried out to identify injurious living factors to Pistachio trees in the natural forest of Khajeh,Kalat. To do this, each year from late March until late October a weekly or biweekly sampling program was conducted. To sample, a variety of methods including direct collection, shaking the foliages, knockdown and light trap were used. En some cases, the immature stages were reared to adult. During this period, a variety of insect and mite specimens were collected and identified. Among them , frequency and activity of three species be longing to the order of Lepidoptera were was more observable than the other pests. They are as follows_ Gelechia cuneatella Douglas, (Gelechiidae), Nephopterix minimella Amsel, Pyralidae), Arimania komaroffi Ragonot,(Pyralidae). The first two species are reported from pistachio trees for the first time and are new for Eran. The 3rd species which already has been reported from Eran is new for Khorasan province. All of these species are important defoliators of pistachio trees in region. Some aspects of their biology such as seasonal activity and the number of generation of each species was studied.