natural enemies of insect pests 基本例句 天敌昆虫 Study on Parasitical Natural Enemy Insect of Saperda populnea L.青杨天牛寄生性天敌昆虫初步研究。 Egg parasitoids of the genus Trichogramma are widely used in biological control against Lepidopterous pests.赤眼蜂属是生物防治中广泛用来防治鳞翅目害虫的一类重要天敌昆虫。