Other host insects could maintain the food chain when the target insect population was low.
当林间目标寄主缺乏时，其它寄主可将食物链维系下去。
The conclusion indicted that the pathogenicity could be improved through mutating by using the target insect.
说明利用靶标昆虫的诱变来提高病原菌的致病力的方法是可行的。
Transgenic insect-resistance hybrid poplar 741 had negative effect on target and non-target phytophagous pests, but had positive effect on natural enemies and neutral arthropod.
研究表明，转基因741杨对目标昆虫和非目的植食性害虫存在负效应，而对天敌和中性节肢动物组成和发生无明显负作用。
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