曲纹紫灰蝶的发生为害及生物学研究

Investigation of occurrence and biology of Chilades pandava

对曲纹紫灰蝶(Chiladespandava(H.))在广东部分地区的发生为害进行了调查,并对其生物学特性进行了初步研究.结果表明,曲纹紫灰蝶卵期为(1 52±0 11)d,幼虫分4龄,历期为(5 96±0 19)d,各龄历期差别明显;蛹期为(5 14±0 38)d,曲纹紫灰蝶成虫在上午9:30～10:30活动数量达到全日最高峰;并根据其发生特点提出了该虫的防治对策.

The biology and occurrence of Chilades pandava (H.) in Guangdong were preliminary reported in this paper. The adults were most active from 09:30 to 10:30 in the morning. There were 4 instars in its larval stage. The durations of egg, larva, pupa were 1.52±0.11, 5.96±0.19 and 5.14±0.38 days respectively. The eggs were oviposited dispersedly on the shoots which were seriously infected by the larvae. Based on the above results, some control countermeasures were proposed.