竹尖胸沫蝉的生物学特性及防治

Studies on the Bionomics of Aphrophora horizontalis Kato and Its Control

竹尖胸沫蝉是竹子小枝、嫩梢上的重要害虫。在浙江省一年1代,以卵于枯死嫩枝中越冬,4月中旬卵孵化,若虫期4月中旬到6月中旬,成虫期6月上旬到11月中旬。若虫隐蔽于泡沫团中危害,成虫羽化后迁移到竹子梢部补充营养,9月中旬迁回到竹子下部及小径竹上交尾、产卵。用编号为9103号的农药,每竹竹腔注射0.3ml,效果100％。

Aphrophora horizontalis,distributed on small areas south to Yangtze River in China, causes severe damage to small branches and young tops of many bamboo species in Phyllostachys. The insect has only one generation a year in Zhejiang and overwinters as eggs laid on small branches which had been damaged to death. Nymphs, feeding in cuckoo spit, can be found from mid-April to mid-June. There are five nymphal instars each taking respectively 13.75, 10.71,6.19,5.78 and 12.74 days for development. Adults, occurring from early June to mid-November, suck sap from young tops after emergence and return to small branches on low parts of bamboos for mating and laying eggs in mid-September. Total death of nymphs is obtained three days after cavity injection of 50% methamidophos at the rate of 0.3ml per culm.