scalelike plant-eating insect coated with a powdery waxy secretion; destructive especially of fruit trees
双语例句
用作名词 (n.)
Therefore, the ladybird beetle could be considered as a potential biocontrol agent in controlling the pine mealybug in practice. 圆斑弯叶毛瓢虫对湿地松粉蚧有较强的捕食作用，通过散放瓢虫的成虫和幼虫，增加林间瓢虫的数量，能较好地抑制湿地松粉蚧的增长。
Among the ladybird beetles, N. ryuguus and Keiscaymnus taiwanenisis Yang et Wu were two most abundant species, which followed well the dynamics of the pine mealybug in nature. 林间湿地松粉蚧捕食性天敌昆虫以瓢虫类数量居多，粉蛉类次之，草蛉类和蜘蛛也有一定的数量。
