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影响松褐天牛羽化率的关键因子研究 预览

The key factor affect emergence rate of Monochamus alternatus Hope
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摘要 为了研究明确林间释放花绒寄甲Dastarcus helophoroides Fairmaire后影响松褐天牛Monochamus alternatus Hope羽化率的关键因子,本文在试验地不同位置设置诱木引诱松褐天牛成虫产卵,并在诱木上释放花绒寄甲成虫,之后调查诱木的生长环境及诱木上花绒寄甲的寄生率、其他天敌寄生率,并对各因子与松褐天牛羽化率进行逐步回归分析,筛选出关键因子。结果表明,影响松褐天牛羽化率(Y)的关键因子是花绒寄甲寄生率(X_(16))和其它天敌寄生率(X_(15)),两者与松褐天牛羽化率均呈显著负相关关系。依此建立多元回归模型:Y=1.0194-0.6608 X_(15)-0.8665 X_(16)。经检验,平均差异程度为0.2573。以上研究,证实了释放花绒寄甲对松褐天牛的种群起到了重要控制作用。 Dastarcus helophoroides Fairmaire is an important parasitoid of Monochamus alternatus Hope in China,but shows varying parasitism depending on the microenvironment. The influence of key environmental factors on parasitism by D. helophoroides was investigated. Fifteen environmental factors of 65 plots were surveyed,and the data were related to parasitism rate by stepwise regression analysis. The results showed that there was a significant positive correlation between slope position and parasitism rate,and a significant negative correlation between crown density and parasitism rate. Using these two key factors,a multiple regression model was established for forecasting the parasitism by D. helophoroides.The average difference degree was detected to be 0.2209,which indicated the model was suitable for forecasting the parasitism rate. These studies provided a basis for releasing the parasitoid to control the longhorn beetles.
作者 唐艳龙 张彦龙 路纪芳 高尚坤 王小艺 杨忠岐 王健 TANG Yan-Long1,2, ZHANG Yan-Long2, LU Ji-Fang3, GAO Shang-Kun2, WANG Xiao-Yi2, YANG Zhong-Qi2, WANG Jian3 (1. School of Life Sciences, Zunyi Normal University, Zunyi 563002, Guizhou Province, China; 2. Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry/Key Laboratory of Forest Protection of State Forestry Administration, Beijing 100091, China; 3. Zunyi Institute of Forestry, Zunyi 563000, Guizhou Province, China)
出处 《环境昆虫学报》 CSCD 北大核心 2018年第2期333-339,共7页 Natural Enemies of Insects
基金 林业公益性行业科研专项经费项目(201504302) 国家自然科学基金重点项目(31230015)
关键词 松褐天牛 马尾松 关键因子 花绒寄甲 Monochamus alternatus Hope Pinus massoniana Lamb. key factors Dastarcus helophoroides Fairmaire
作者简介 唐艳龙,男,1982年生,湖北长阳人,博士,助理研究员,研究方向为林业有害生物防治,E-mail:15120086160@163.com;通讯作者Author for correspondence,E-mail:xywang@caf.ac.cn
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