摘要
近几年发现的杉木种实害虫──杉木球果瘿蚊，它对杉木种子产量和质量影响很大。虫果和健果比较鲜重损失３６．６％、出籽率损失３４．９％、发芽势损失４３．１％、发芽率损失３８．６％、千粒重损失１４．４％。引起损失的主要原因是瘿蚊幼虫危害果鳞后引起果鳞畸形生长，阻碍种子的发育。
Gall midge in chiners fir cone had evident influence on seed quality and quantity of chinesefir seed. Fresh weight of diseased cone sufferred losses by 36. 6% of normal cone, rate of seed by 34. 9%,germinating viability by 43. 1%, germination rate by 38. 6% and thousand - grain weight by 14. 4%. The maincause was anomalous growth of diseased cone polea.
出处
《浙江林业科技》
北大核心
1995年第4期27-29,共3页
Journal of Zhejiang Forestry Science and Technology
关键词
杉木
球果瘿蚊
危害性
Chinese fir cone gall midge
loss
