摘要
为掌握广西沙塘林场马尾松毛虫越冬幼虫虫情,对虫情发生情况进行科学预报和评价,于2006－2010年每年的12－1月在该林场设置固定标准地进行虫情调查监测,并采用灰色关联度分析法进行虫情综合评价。结果表明,2006年林场马尾松毛虫越冬幼虫大发生,其它年份没有大发生,仅虫源地有大发生趋势,5年间马尾松毛虫越冬幼虫虫情综合评价系数由大到小,虫情由重到轻排序为2006年〉2008年〉2009年〉2010年〉2007年。生产部门有必要加强马尾松毛虫越冬幼虫的监测管理。
Scientific prediction and evaluation for the occurrence of insect pest situation of Dendrlimus punctatus walker.over wintering larva were conducted in Guangxi Shatang Forest-farm,in order to grasp the situation.The investigation and monitoring were carried out by setting fixed sample plots in the forest-farm from December to January every year in 2006~2010.Gray correlation analysis method was used for comprehensive evaluation of insect pest situation.The results showed that D.punctatus walker.over wintering larva in the forest-farm was outbreak in 2006,whereas there were no outbreak in other years.Outbreak trend was only in the site of insect-source.During 2006~2010,the coefficients of comprehensive evaluation were orderly from big to small for D.punctatus walker.over wintering larva and from severe to slight for insect pest situation,which were 20062008200920102007.It is necessary to enhance the monitoring and managing of D.punctatus over wintering larva in production dapartment.
出处
《广西科学》
CAS
2011年第3期308-311,313,共5页
Guangxi Sciences
基金
广西生态工程职业技术学院科研项目--广西沙塘林场马尾松毛虫越冬代调查体系改造项目(st200808)资助
关键词
马尾松毛虫
越冬幼虫
虫情
灰色关联度
Dendrolimus punctatus Walker.
over wintering larva
insect pest situation
grey correlation
