摘要
龙眼角颊木虱，分布于中国的福建、广东、海南和广西。是龙眼新梢嫩叶的一种重要害虫，１９８２—１９８３年在福州进行了这项研究。成虫在嫩梢、芽和叶上吸食为害，若虫固定于叶背吸食并形成下陷的虫瘿，因此在叶面布满小突起，叶片变小，畸形扭曲，影响新梢的抽生和叶片的正常生长。且为龙眼鬼帚病的传播介体。一年发生３—５代，世代重叠。并有部分滞育种群。若虫共４龄，大多数群体一年３代，８月间２龄若虫停育，继而越冬。部分发生４代２龄若虫９月底停育。发育成第五代的个体仅占少数，以２龄若虫从１１月底开始停育越冬。翌年３月下旬（旬均温１４．８℃），大部分若虫开始活动，３月底多数若虫老熟，成虫羽化产卵见于４月上、中旬。４月下旬盛孵。越冬代成虫迄５月中旬陆续羽化完毕。第一至四代成虫出现期：５月底至６月下旬；７月上中旬；９月上中旬；１０月上旬至１１月上中旬。成虫盛发产卵期与龙眼抽梢期相吻合。叶片的营养状况可能影响若虫的发育。４—６月为一年中虫口数量的高峰期。文章对于形态和生物学也有较为详细的记述。
The longan psyllid Cornegenapsylla sinica Yang et Li,an important pest on the lon-gan,is distributed in Fujian and Guangdong Provinces of China.The longan psyllid not only attacks the shoot and leaf of longan,but also is the vector of lon-gan witches’broom.It develops 3 5 generations a year and the generations overlap with thepart diapause population,The nympha have 4 instars.Most population develop 3 generations peryear,in which the 2nd instar nympha stop developing in August and then overwinter.But the2nd instar nympha of the part population with the4th generation stop developing in late Septem-ber.However,a few grow into the 5th generation and its 2nd instar nympha overwinter in lateNovember.Most nympha bring into action in late March next year,and adults and eggs appear inearly and middle April.The adult appearance duration of the 1st 4th generations is from lateMay to late June,in early and middle July,early and middle September,and from early October toearly and middle November,respectively.The peak of population within a year is from April toJune.The morphology and biology of the longan psyllid are also covered in the paper.
出处
《华东昆虫学报》
1995年第2期38-42,共5页
Entomological Journal of East China
