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【转载】叶蝉（原创）

2016-12-01 14:22:25| 分类：动物世界 | 标签： |举报 |字号大中小订阅

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本文转载自风儿《叶蝉（原创）》

叶蝉【Cicadellidae】，半翅目叶蝉科昆虫。成虫体长 4.6 -- 4.8毫米，外形似蝉。黄绿色或黄白色，可行走，跳跃。卵乳白色，长椭圆形，两头较细，顶端稍平，一侧平直，顶部具一白色棉絮状毛束。若虫共五龄。

叶蝉以成、若虫吸食禾谷、蔬菜、果树及林木汁液为害。早期吸食花萼、花瓣，落花后吸食叶片，被害叶片出现失绿的白色斑点，严重时全树叶片呈苍白色，提早落叶，使树势衷弱。

叶蝉成虫已知近20000种，我国已记载约1000种。该科昆虫不仅危害农作物，还会传播植物病毒病。

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