摘要 : Diapause is a unique strategy of dormancy in insects to avoid unfavourable conditions. The exotic beetle <i>Zygogramma bicolorata</i>, is an effective biological control agent of <i>Parthenium hysterophorus</i> in India, Adults di... 展开 Diapause is a unique strategy of dormancy in insects to avoid unfavourable conditions. The exotic beetle <i>Zygogramma bicolorata</i>, is an effective biological control agent of <i>Parthenium hysterophorus</i> in India, Adults diapause in soil during December to May. As a result, there is delay in its effectiveness on the plant that reaches to flowering and seed production by the time the beetle is able to build up its population after emerging from diapause. Therefore, a study was conducted to explore possibilities of diapause aversion by temperature regulation. Results indicated that exposure of newly emerged adults to heat treatment of 35 degrees C and to low temperature of 10 degrees C could reduce diapause in <i>Z. bicolorata</i>. The low temperature can also be used as a medium for the storage of the mass reared beetles for a long time without having negative effect on their longevity and fecundity.Digital Object Identifier http://dx.doi.org/10.1080/09583157.2010.484855 收起