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Psyllidae相关的网络例句

查询词典 Psyllidae

与 Psyllidae 相关的网络例句 [注:此内容来源于网络,仅供参考]

Any of various jumping plant lice of the family Psyllidae, especially of the genus Psylla, which includes several species that infest fruit trees.

木虱一种木虱科植物跳虱,尤指属于跳虱属的木虱,有不少品种是侵害果树的

It was different in the occurring time and quantity of dominant species: in early spring, there were more Psyllidaes in the dense planted area, but more main pests Opatrums and Scarabeidaes and their nature enemies Carabidaes and Spiders in the low planted area. After autumn, the quantity of Psyllidae was the largest in the low planted area, but the least in the dense planted area.

群落个体数稀植区在大部分时间内均高于其它2区。3个区的主要优势害虫及其天敌在发生时间和数量上有一定差异,早春密植区木虱发生数量较大,稀植区中砂潜、金龟子类害虫以及步甲、蜘蛛类天敌数量相对丰富,入秋后稀植区木虱发生量最大,密植区最小。

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