杨皱背叶蝉的生物学特性
The biological characteristics of Rhytidodus poplara
闫家河1**,宋月华2,王绍林3,王爱珍
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作者单位：1 山东省商河县林业局 商河 251600； 2 贵州大学昆虫研究所 贵阳 550025；3济南市林业局 济南 250002； 4 山东省商河县气象局 商河 251600
中文关键词：杨皱背叶蝉;生活史; 生活习性; 天敌; 杨树
英文关键词：Rhytidodus poplara, life history, life habits, natral e
中文摘要：杨皱背叶蝉Rhytidodus poplara Li et Ya.是危害杨树的新害虫。首次记述其形态特征、生物学特性、发生规律及天敌种类。在山东商河1 年发生3代，以成虫在地面落叶和杂草中越冬。翌年2月中旬开始出蜇，在枝干上补充营养、交尾，在叶柄上产卵。产卵量113～361枚，卵历期10～23 d ，若虫历期17～43 d 。成虫寿命7～69 d ，羽化后5～12 d开始产卵，主要在下午至傍晚前后，多产于叶柄端部的卵槽内。寄生性天敌有寄生若虫的闫氏单爪螯蜂Anteon yani和寄生卵的缨小蜂Anagrus sp.，对叶蝉种群控制作用明显。
英文摘要：Rhytidodus poplara Li et Yan is a new insect pest on poplar. The morphology, biology and occurrence and its natural enemies were introduced. It has three generations a year in Shanghe, Shangdong Province and overwinters as adult in defoliation and weeds. It comes to feed on poplar in middle February, then mates and lays eggs on leafstalk. The fecundity per female is 113～361 eggs. The egg stage lasts for 10～23 days and the larval for 17～43 days. The adult life_span is 7～69 days. The female lays eggs in 5～12 days after emergence, usually from the afternoon to evening. The eggs were in the leafstalk. The important natural enemies includes Anteon yani and nagrus sp.