Investigation on the species of natural enemy insects in peach orchard in Lishui

The species of natural enemy insects in peach orchards were collected and investigated by methods of Absorption detection,catching with a net,manual collection,light trap and so on. The results of indoor identification showed that there were 38 kinds of natural enemy insects in peach orchards in Lishui City in southwest of Zhejiang Province. These insects belong to 7 orders,20 families,and the relative abundance was 0.0659 and the predatory natural enemy insects played a dominant role. There were a large number of natural enemy insects in peach orchards under sod culture,among which,6 orders,8 families and 6 species showed higher relative abundance above 0.005. The highest relative abundance was observed in Coleptera,Chrysopidae and Chrysopa septempunctata. However,the natural enemy insects in peach orchards with clean tillage were quite fewer.