前言害虫猖獗是昆虫在生殖力、存活率或活动上发生急剧变化的结果。预测昆虫密度及危害需要对其种群的有关参数进行估计。本文报道了一个迅速、简便估计传入北美森林且猖獗发生的食叶害虫——舞毒蛾(Lymantria dispar L.)生殖力的方法。舞毒蛾产卵成块,上被黄褐色腹毛。产卵量从<100粒/块——>1000粒/块。产卵 Introduction Pest infestations are the result of dramatic changes in insects’ fecundity, viability or activity. Predicting insect density and its hazards requires estimation of the parameters of its population. This article reports a quick and easy way to estimate the fecundity of the leaf-eating pest Lymantria dispar L. that is introduced into the forests of North America. Gypsy moth spawns into pieces, was yellow brown belly hair. Feeds from <100 grains / piece -> 1000 grains / piece. spawning