荔枝龟背天牛的生物学及防治研究  

A STUDY OF THE BIOLOGY AND CONTROL METHODS OF LONG HORN BEETLE ARISTOBIA TESTUDO(VOET)

作　　者：何等平 梁汉文[1] 冯钦明 招晓东 

机构地区：[1]华南农业大学园艺系 [2]广东省东莞市林科所

出　　处：《昆虫天敌》1990年第3期123-128,共6页Natural Enemies of Insects

摘　　要：根据1984～1990年在广州、东莞、中山的调查,为害荔枝的天牛为龟背天牛 Aristo-bia testudo(voet)。龟背天牛一年发生一代。成虫于7月大量羽化,在7、8月间咬食枝梢皮层以补充营养,造成枯梢。8月卵盛见。幼虫于9月盛孵,直至12月仍在皮下取食,其体长仅0.4～0.7cm。越冬后,幼虫依荔枝品种的熟期迟早而先后恢复活动,大量取食并迅速钻入木质部发展坑道。老熟幼虫体长5～6cm,坑道50～70cm。6月后陆续化蛹。主栽的荔枝品种以黑叶、妃子笑受害较重,糯米糍受害较轻,在品种较单一的条件下,桂味、淮枝受害也不轻。幼树较老树受害重。7月至12月是防治龟背天牛的关键时期。药剂防治试验效果不理想。在目前的科技水平条件下,经几年的实践表明,掌握成虫盛见期、卵期及低龄幼虫期进行人工捕杀的方法防治龟背天牛,效果、效率相当理想,有推广应用价值。According to our survey in GuangZhou.DongGuan and Zhong Shan,the long horn beetle injuring the Lithchi was Aristobia testudo(voet).It had one genera- tion each year.The adult emerged generally on July.They bite around the bark of the twig circular like then made them withered.Eggs were laid individually under the bark most in August.The larvae hatched in September mainly and fed just under the bark before hibernation(from August to December).The larvae was about 0.4—0.7 cm.in length in these period.After hibernation the lar- vae continue activity according to the mature of the litchi variety.They bor- ed into the wood and developed the tunnel rapidly.The final larvae's tunnel bu- rrow was about 60 cm long. Among the main varieties of litchi,Hei Ye,Fei Zi Xiao were infested most heavily. Chemical control we had used was failed,except injecting % DDVP 100X to the tunnel. The effective control measures for this pest were:catching the adult in July and August,killing the egg and larvae with a smalle knife when they were under the bark before activity from hibernation.There were 5 months from August to January left for us to control.We had practised that a skillfull labour killing 112 larvae only use 2 hours.

关 键 词：荔枝 龟背天牛 生物学 防治 

分 类 号：S436.67[农业科学—农业昆虫与害虫防治]