依附在其他生物并以此为营养源称为寄生。寄生蜂是一大类,其中赤眼蜂名声最大。我国现有赤眼蜂95种以上,个体微小,不超过一毫米,专门寄生于昆虫的卵粒中,在世界上是应用量最大的天敌昆虫。例如松毛虫赤眼蜂(附图)是松毛虫等林木害虫的重要卵期天敌;而且人们早就发现可用蓖麻蚕、柞蚕、米蛾卵繁殖,因而可以在田间大批释放。又例如稻田 Attached to other organisms and as a source of nutrition called parasites. Parasitic wasps are a large category, of which Trichogramma is the most famous. There are more than 95 Trichogramma species present in our country. Individuals are small, not more than one millimeter, and are specially parasitized in the eggs of insects. In the world, they are the most widely used natural enemy insects. For example, Trichogramma trichogramma (photo) is an important ovipositor of forest pests such as pine caterpillars, and it has long been found that Eriobotrya, tussah and rice moth eggs can be propagated and thus can be released in large quantities in the field. Another example is rice fields