Study and Application on Sustained and Integrated Control Techniques of Colorado Potato Beetle

【Objective and Method】In terms of the evalution of later fall ploughing,overwinter irrigation rotation to controlling CPB,and also research on its biological control,the main aim of this study was to probe the better sustained and intergrated control techniques of Colorado Potato Beetle in order to control the damage and dispersal of CPB effectively【Result】Later fall ploughing overwinter irrigation could result in mortality of overwintered adult of CPB by 33.3%-76.36%,rotation could caused 29.4%-84.3% reduction of overwintered adult of CPB population and also postponed occurrence of overwintered adult of CPB 4-7 d,most of natural enemies were predators,the total numbers of natural enemies of CPB were 89.2%.CPB threshold for the control was 14 overwintered adults of CPB per hundred potato plants or 106 stars larvae of first generation of CPB per hundred potato plant,the control efficiency of several kinds of pesticides reached more than 90.0% in 10 days after their application. 【Conclusion】The sustained and intergrated techniques included the ecological biological control,cultival techniques and chemical control by friendly enviromental pesticides etc.were involved.The technique with advance and operation well adapted to potato production situation of place where CPB ocurred in Xingjiang.The sustained and integrated control techiques of Colorado Potato Beetle has achieved significant economic and social ecological efficiency.