بررسی امکان سنجی انتقال پسیل مولد گز انگبین ‭(Cyamophila astragalicola) ‬منطقه کوهرنگ به روی گیاه ‭(Astragalus adscendens) ‬در مراتع سه منطقه از استان لرستان

Gazangabin is a Manna substance which is induced by the activity of psyllid Cyamophila astragalicola on Astragalus adscendens solely in central Zagros areas. During the last decades the population of this insect has reduced due to various reasons , thus lowering the production of Gaz to the least amount. In the course of the study at first activity sites of the insect in Lorestan province were evaluated. then five growing sites include Tafe-rimaleh, Pasir,Nokhodar,Belomo mountain of Zage and Eyvashan with similar ecological ,topology and climate conditions with Kohrang area but bearing no psyllid Gazangabin were selected for releasing the insect. Cyamophila astragalicola. In each place insects were released on Astragalus adscendens in three directions of north, northwest and across the crest line. Twenty Astragalus adscendens plants were selected on a completely randomized design with 4 treatments of living insect (egg, 4,5 instar nymphs, autumn and spring adults) and 5 replications. Data were analyzed using SPSS softwere. The results showed that there wasn't any insect establishment in Eyvashan, Tafe-rimaleh and Belomo Mountain following 1 year of insect release. The psyllid with low population and limited numbers were observed in Nokhodar and Pasir only in northern and north eastern slopes. Based on obtained results the slope direction, site and living stage of insect during releasing period are important factors for the establishment of the insect. Key words: Astragalus adscendens, Cyamophila astragalicola, release, Lorestan

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آستراگالوس ، پسیلا (برگ ککیان) ، گیاهان صمغ دار ، لرستان