柳牡蛎蚧的天敌柳牡蛎蚧半疥螨初步研究  

A PRELIMINARY REPORT ON THE BIOLOGY OF HEMISARCOPTES SP. [ACARI:HEMISARCOPTIDAE], AN IMPORTANT NATURAL ENEMY OF WILLOW OYSTER-SHELL SCALE, LEP1DOSAPHES SALICINA [HOM.:DIASPIDIDAE]

作　　者：姬兰柱[1] 杨金宽[1] 邵玉华[1] 

机构地区：[1]中国科学院沈阳应用生态研究所

出　　处：《生物防治通报》1991年第4期151-153,共3页

摘　　要：在我国首次发现捕食柳牡蛎蚧的半疥螨,其若螨和成螨对柳牡蛎蚧的卵、若虫、雄蛹和雌成虫均能捕食,捕食率达40％。该螨生育力较强,每雌螨平均产卵12.8粒,最高为20粒。卵经7天左右孵化。在沈阳地区全年发育,世代交替。种群出现高峰在6月中旬到8月下旬,在此期间发生3代。The nymph and adult of Hemisarcoptes so. were found for the first time in China to prey on the egg, nymph and adult of Lepidosaphes salidna on poplar trees in Shenyang, Liaoning Province. During summer of 1989, over 40% of the scale population on the sampling trees were attacked by the predator. The average fecundity of the predator was found to be 12.8 eggs/female, with a max. of 20 eggs. The egg developmental period was 7 days. Population peak of the predator occurred in mid June to late August, during this period the predator completed 3 generations.

关 键 词：柳牡蛎蚧天敌 半疥螨 盾蚧 

分 类 号：S944.41[农业科学—水产养殖]