Occurrence of Carpomya vesuviana in Turpan region
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Key Words：Carpomya vesuviana, distribution, host, life history, biology, control
Abstract： The distribution, natural hosts, life history and biol ogy of Carpomya vesuviana Costa was preliminarily investigated in Turpan region from September 2007 to October 2008 The primary distribution area of C. vesuviana in Turpan region located in almost towns in Turpan city and Shanshan county, and in Xia town and Hedong town in Toksun County. The fly may damage all varieties of jujube including the wild ones, but not the other melons and fruits mainly planted in Turpan region. It occurred 2 or 3 overlapping generations one year and overwintered as pupa in the soil under the jujube. Adults emerged in midMay, and laid eggs in the surface of the jujube fruits in midJune. The larva began to eat the flesh oncehatching. The final instar larvae wriggled out of the fruits, and dropped down into the soil under the tree to pupate for overwintering in late September. Both female and male adults need food for survival after eclosion. Adults can live up to 45 days given enough food. Adults were sensitive to green, yellow and cyan. Both female and male adults exhibited multiple mating behavior. The mean egg amount of single female adult was 16, and the maximum amount could be 26.