Besides, the trace observations on the amount of B. xylophilus into pine twigs revealed that the peak period of nematode transmission advanced in higher temperatures. 通過(guò)對松褐天牛取食傳入松枝的松材線(xiàn)蟲(chóng)量的追蹤記錄發(fā)現，隨著(zhù)溫度的升高，傳播線(xiàn)蟲(chóng)的高峰時(shí)段隨之提前。
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