学术
摘 要:
通过3a观测摸清了油松毛虫的生物学特性和油松毛虫各虫态发生期与物候期的关系；采用漏斗法调查油松毛虫越冬基数，使2001年、2002年虫口密度的准确率分别提高了73．3％和54．6％，有虫株率准确率分别提高了33．3％和15％；应用有效基数预测法对2003年、2004年油松毛虫发生量进行预测，发生量预测准确率分别达到96．4％和95.8％。在测报基础上对油松毛虫无公害防治技术进行研究和应用，筛选出适合本地区油松毛虫防治的新剂型——20％米螨胶悬荆，大面积采用仿生物制剂灭幼脲Ⅲ和灰喜鹊无公害防治技术，为北京地区油松毛虫无公害防治技术的全面应用提供了科学方法。[著者文摘]
文章出处:
《中国森林病虫》-2006年25卷1期 -35-39页
栏目信息:
分 类 号:
文献标识码:
B
文章编号:
1671-0886（2006）01-0035-05
Forecast and pollution-free control techniques against Dendrolimus tabulaeformis
WANG Xiao-jun （The Forestry Bureau of Miyun County,Beijing,Miyun 101500,China）
Abstract:
The bionomics and relationship between the phenophase and occurrence of Dendrolimus tabulaeformis were found after 3 years＇ observation. Its overwintering base was investigated with funnel method resulting in the increase of the accuracy of population density by 73.3 % and 54.6 % and that of attacking rate by 33.3 % and 15 % in 2001 and 2002. The numbers of Dendrolimus tabulaeformis appeared in 2003 and 2004 were forecasted with the effective base forecast method and the accuracy was 96.4 % and 95.8 % respectively. Tebufenozide SC was screened against the pest along with the application of chlorbenzuron Ⅲ in large area and attraction of Cyanopica cyana.[著者文摘]
Key words:
Dendrolimus tabulaeformis ; forecast; biological control
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