苦楝斑叶蝉生物学特性及防治

苦楝斑叶蝉是苦楝树上的重要害虫。该虫在湖南省衡阳地区每年发生 1代 ,以卵在寄主树皮内越冬。越冬卵 4月上旬开始孵化 ,5月上旬成虫开始羽化 ,羽化后 10～ 15天产卵 ,卵期约 30 0天。若虫共5龄。采用敌敌畏、乐果等农药防治

Bionomics of Erythroneura melia Kuoh and its control.

Erythroneura melia Kuoh is a serious insect pest on chinaberry. It has one generation a year in Hengyang area, Hunan Province and overwinters as eggs in host barks. The egg begins to hatch in the first ten days of April. There are 5 nymphal instars. The adult emerges in early May and oviposits 10-15 days later. The whole egg stage lasts about 300 days. It may be effecitively controlled with DDVP, Rogor, etc. in the nymphal stage.