白蜡虫生物学特性的初步研究

Preliminary Studies on Biological Characteristics of Ericerus pela Chavannes

研究白蜡虫生物学特性，结果表明：该虫１年１代，主要危害女贞、小叶女贞，以受精雌成虫越冬，翌年３月上旬开始继续取食、生长，４月中、下旬为产卵盛期，产卵期１０～１３ｄ，平均产卵９２０８±２７８８粒。白蜡虫雌成虫体重与产卵量（粒）的关系式为ｙ＝５１０．８０＋４００８０．４４ｘ（ｒ＝０．８９５６＞ｒ０．０１＝０．３３７７），５月中、下旬为若虫孵化期，６月上、中旬为若虫定叶、定杆期，１０月上、中旬雄虫羽化与雌成虫交尾后死亡，受精雌成虫１１月中旬停止取食开始越冬。白蜡虫自定叶盛期到定杆盛期为防治关键时期。

ricerus pela has one generation a year,it damages Ligustrum lucidum Ait and Ligustrum guboni Carr.In Maanshan area,overwinters by the fertilized female adults.It stars to feed and grow in the second or late April.Egg numbers produced by female closely corresponded with its weight.The aggregations is y=510 81+40080 44x (r=0 8956>r 0 01 =0 3377).The larva are hatched in second or late May.It goes to leaves and then goes to stem in forest or second June.The male emerged in the second or late October dies after it male with it overwinters in November.