板栗挥发物对桃蛀螟成虫寄主选择行为的影响  

Effects of volatiles from chestnut on host preference of adult Conogethes punctiferalis(Lepidoptera:Pyralidae)

作　　者：陈炳旭[1] 董易之[1] 梁广文[2] 陆恒[1] 

机构地区：[1]广东省农业科学院植物保护研究所,广州510640 [2]华南农业大学昆虫生态研究室,广州510642

出　　处：《应用生态学报》2010年第2期464-469,共6页Chinese Journal of Applied Ecology

基　　金：广东省农业攻关项目(2005B20501007);广东省农业科技推广项目(2130106);国家科技支撑计划项目(2008BADA5B01)资助

摘　　要：通过田间调查及行为反应、EAG反应和产卵选择性测定,研究了板栗挥发物对桃蛀螟（Conogethes punctiferalis）成虫寄主选择行为的影响.2004-2008年的田间调查结果表明：桃蛀螟在农大1号板栗上的蛀果率为16.1%25.3%,而在河源油栗上的蛀果率均小于5%,桃蛀螟对前者的危害明显较重.农大1号板栗的果实和叶片挥发物对桃蛀螟雌蛾均有显著吸引作用,其中果实比叶片挥发物的吸引作用更强,但上述挥发物对雄蛾没有明显吸引作用;河源油栗的果实和叶片挥发物则对雌、雄蛾均无吸引作用.触角电位反应试验表明,桃蛀螟雌蛾对农大1号板栗果实挥发物的反应比河源油栗果实强烈,但雄蛾没有明显差异;同一品种中,雌、雄蛾对果实的反应均比叶片强烈.桃蛀螟雌蛾在农大1号板栗果实上的产卵量明显高于叶片及河源油栗的果实和叶片,而后三者之间差异不显著.Through field survey and the tests of behavioral response,EAG response,and multiple-choice oviposition,this paper studied the effects of volatiles from Nongda No.1 chestnut（NC）and Heyuan oil chestnut（HC）on the host-selection behavior of adult Conogethes punctiferalis.The field survey in 2004-2008 showed that the moth-eaten rate of NC fruits by adult C.punctiferalis was 16.1%-25.3%,while that of HC fruits was less than 5%.The volatiles from NC fruits and leaves were more attractive to female than to male moths,and the fruit volatiles were more attractive than leaf volatiles.However,the volatiles from HC fruits and leaves were not attractive to both female and male moths.The EAG response showed that female moths had significantly higher response to NC fruit volatiles than to HC＇s,but male moths had no significant difference in this response.For both NC and HC,the EAG responses of female and male moths to fruit volatiles were higher than those to leaf volatiles.The number of eggs laid by female moths was much greater on NC fruits than on NC leaves and on HC fruits and leaves,but had no significant differences on the latter three. 还

关 键 词：桃蛀螟 板栗 寄主选择 行为反应 触角电位 

分 类 号：S436.64[农业科学—农业昆虫与害虫防治]