英语词汇“pear psylla”是什么意思，“pear psylla”的读音、用法及例句翻译-乐坝网

词汇	pear psylla
释义	pear psyllan.（名词） A small plant louse(Psylla pyricola) that is a destructive pest of pear trees, especially in the northeast United States. 木虱：一种植物小虱子（梨黄木虱木虱属），尤其在美国东北地区，是梨树的大害
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