寄生天敌云杉瘿蚊长尾小蜂寄生率达6 .39%。
The parasitic rate of parasitic natural enemy Torymus gansuensis is 6 39.
天敌包括捕食性天敌与寄生性天敌。
The natural enemies include predacity and parasitical enemy.
有一种观点认为它们总能逃避天敌，例如被寄生物控制于自己的居住范围。
One idea is that they've escaped their enemies, for example, the parasites that keep them in check on their home turf.
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