State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan Agricultural University Kunming 650201 P.R.China;
State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China;
College of Agriculture&Biology Technology Yunnan Agricultural University Kunming 650201 P.R.China;
potato tuber moth; Phthorimaea operculella(Zeller); intercrop; biological control; natural enemies; parasitoids;