摘要
对华山松球果螟的生活史和各虫态的生物学习性进行了描述;在云南楚雄市紫溪山该虫1年发生2代,以老熟幼虫在球果中越冬;成虫多在12∶00～18∶00羽化,求偶及交尾在夜间进行;成虫羽化量受气温和降水的影响;产卵场所具有选择性,卵主要产于2年生球果表面.
Dioryctria rubella is an important insect pest that damages the cones of Pinus armandii.Its life history and biological characteristics were described in this paper. It was observed that Dioryctria rubella had 2 generations with late instar larvae overwintering in the cone of Pinus armandii in Zixi Mountain, Chuxiong Municipality, Yunnan Province. Adults of Dioryctria rubella usually emerged during 12∶00～18∶00, courted and mated at night. The adult emergence quantity of Dioryctria rubella was affected by temperature and rainfall during the emergence period, and the adults would choose oviposition locations and mainly lay eggs on the surface of 2-year-old cones of Pinus armandii.
出处
《西南林学院学报》
2004年第1期41-45,共5页
Journal of Southwest Forestry College
基金
云南省科技厅应用基础研究基金资助项目(2000C0056M).
