不同寄主来源种群花绒寄甲成虫对桃红颈天牛幼虫虫粪的行为趋性和种群控制效果  

Behavorial responses of adults of Dastarcus helophoroides( Coleoptera:Bothrideridae) populations originated from different hosts to larval frass of Aromia bungii( Coleoptera: Cerambycidae) and their control effect on A. bungii population

作　　者：门金 曹丹丹[1,2] 赵斌[1] 王伟超[1] 刘鹏程[1,3] 魏建荣[1] 

机构地区：[1]河北大学生命科学学院,河北保定071002 [2]河北省生物工程技术研究中心,河北保定071002 [3]南京林业大学林学院,南京210037

出　　处：《昆虫学报》2017年第2期229-236,共8页Acta Entomologica Sinica

基　　金：河北省高校百名优秀创新人才项目(2014BR2-203);河北省自然科学基金项目(2014 201004)

摘　　要：【目的】桃红颈天牛Aromia bungii是危害桃、杏、李、樱桃的主要蛀干害虫,花绒寄甲Dastarcus helophoroides是一种能有效防治多种天牛类林木钻蛀害虫的重要天敌昆虫。本研究通过比较不同寄主来源种群花绒寄甲对桃红颈天牛幼虫虫粪的行为反应和对幼虫控制能力的差异,旨在筛选能够有效防治桃红颈天牛的花绒寄甲种群。【方法】采用Y型嗅觉仪测定了6个不同寄主来源种群花绒寄甲成虫对桃红颈天牛幼虫虫粪的行为趋性;采用纱网罩受害原木模拟自然条件,释放不同种群花绒寄甲成虫测定了其对桃红颈天牛的致死效果。【结果】行为趋性结果表明,源自松褐天牛和云斑天牛的花绒寄甲种群对桃红颈天牛幼虫虫粪表现出明显的正趋向反应,而源自光肩星天牛、星天牛、锈色粒肩天牛和栗山天牛这4个种群的花绒寄甲对桃红颈天牛幼虫虫粪均未表现出明显的趋向反应。持续2年的寄生控制实验表明,源自光肩星天牛的花绒寄甲种群致死效果较好,天牛死亡率为52.86%±5.97%,源自松褐天牛、云斑天牛、栗山天牛和锈色粒肩天牛的花绒寄甲种群控制效果依次降低,天牛死亡率分别为35.14%±5.55%,32.88%±5.50%,26.09%±5.29%和10.94%±3.90%,源自星天牛的花绒寄甲种群未显示出对桃红颈天牛的控制作用。【结论】利用花绒寄甲防治桃红颈天牛时,应选择源自松褐天牛、云斑天牛或光肩星天牛的花绒寄甲种群。【Aim】Aromia bungii Faldermann is a main wood borer of peach,apricot,plum and cherry in China. Dastarcus helophoroides（ Fairmaire） is an important insect natural enemy of large-body longhorned beetles and has six different host-originated populations by now. This study aims to screen a suitable D. helophoroides population to control A. bungii. 【Methods】The behavioral responses of adults of different populations of D. helophoroides to larval frass of A. bungii were assayed with Y-tube olfactometer. The control effects of different populations of D. helophoroides on A. bungii populations in the peach logs were also tested by releasing parasitoid adults under the semi-field conditions. 【Results】D. helophoroides populations originated from Batocera horsfieldi and Monochamus alternatus weresignificantly attracted to larval frass of A. bungii,but other populations of D. helophoroides were not attracted to larval frass of A. bungii. Consecutive observation of the control effects in two years showed that D. helophoroides population originated from Anoplophora glabripennis caused the highest mortality of A. bungii（ 52. 86% ± 5. 97%）. D. helophoroides populations originated from M. alternatus,B.horsfieldi,Massicus raddei,Apriona swainsoni caused the mortality rates of A. bungii of 35. 14% ±5. 55%,32. 88% ± 5. 50%,26. 09% ± 5. 29% and 10. 94% ± 3. 90%,respectively. D. helophoroides population originated from Anoplophora chinensis did not cause higher mortality of A. bungii individuals than the control. 【Conclusion 】 Based on the results it is suggested that three D. helophoroides populations originated from M. alternatus,B. horsfieldi and A. glabripennis could be chosen as the biological control agents of A. bungii.

关 键 词：桃红颈天牛 花绒寄甲 天敌昆虫 行为反应 Y型嗅觉仪 

分 类 号：Q968[生物学—昆虫学]