苏北地区紫薇绒蚧生活史及防治方法  

Life cycle and the control of Eriococcus lagerstroemiae in northern Jiangsu

作　　者：刘博[1] 刘旭[1] 谭军[1] 金倩[1] 罗桂杰[1] 蔡卫佳[1] 王昊[1] 陈芬[1] 沙建国[1] 阮倩倩[1] 

机构地区：[1]江苏省农业科学院宿迁农业科学研究所,江苏宿迁223800

出　　处：《江苏农业学报》2017年第5期1022-1027,共6页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省农业科技自主创新基金项目[CX(14)2043]

摘　　要：在江苏省宿迁地区,紫薇绒蚧(Eriococcus lagerostroemiae)是危害紫薇(Lagerstroemia indica Linnaeus)最严重的害虫之一。本研究发现,紫薇绒蚧在宿迁每年发生3代,以若虫和雌成虫的形式在紫薇树体上越冬。第二年4月下旬先后化蛹、羽化,进行交配和产卵。若虫每年有3个发生高峰期(5月下旬至6月中旬、8月上旬至8月中旬、9月下旬至10月上旬),紫薇绒蚧防治的重点时期在4月下旬越冬若虫活动高峰期和6月中旬若虫成熟高峰期。研究结果表明,春季防治以5波美度石硫合剂的效果最好,夏季防治首选2.5%高效氯氟氰菊酯+5.0%阿维菌素300倍液。Eriococcus lagerstroemiae is one of the most important pests causing severe damages to Lagerstroemiae in- dica Linnaeus in Suqian,Jiangsu province. The research results showed that Eriococcus lagerstroemiae completed three gen-erations every year and overwintered in nymphs and female adult in the host twigs. Until late April of the next year,they pu-pated, emerged,mated and laid eggs. Three peaks of nymphs occurrence were recorded from late May to mid-June,early to mid-August and late September to early October,respectively. The proper control period was late-April when nymphs ap-peared frequently and mid-June when nymphs matured. Five baume degrees LSSS showed the best control effect on the pest in the spring,while 2.5% lambda cyhalothrin ＋ 5.0% avermectin （300 times diluted） was the best choice in the summer.

关 键 词：紫薇绒蚧 紫薇 生活史 防治方法 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]