壳There are lots of factors causing infestation of phytophagous pests and changes of dominate species in the apple orchards.
苹果园内植食性昆
种群数量的上升和主种类的变替，原因是多方面的。
)食植(物)的,食叶类的There are lots of factors causing infestation of phytophagous pests and changes of dominate species in the apple orchards.
苹果园内植食性昆种群数量的上升和主种类的变替，原因是多方面的。
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