The natural enemy of its pest, the assistant of the farm crop, is also the mankind's good friend, we all like it.
它的害虫的天敌，农作物的帮手，也是人类的好朋友，我们都喜欢它。
The composition of Arthropod species in maize fields in Daqing was investigated in order to study the natural enemy and its use work, to develop the work of integrated pest manage to the cornfield.
为了更好地开展对玉米田天敌的研究和利用工作，以及对玉米害虫的综合治理工作，进行了玉米田节肢动物的种类构成成分调查。
The possibility of using the initial EF value to predict the enemy function and to coordinate the pest control strategies with natural enemies and with chemical insecticides was discussed.
本文讨论了利用初始EF值来预测天敌对害虫的功能作用及生物防治与化学防治协调的可能性。
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