摘要
应用Y型嗅觉仪测定松毛虫赤眼蜂Trichogramma dendrolimi Matsumura对9种马尾松树针叶挥发性物质对的嗅觉行为反应,确定了4种对于松毛虫赤眼蜂有影响活性的马尾松树针叶挥发性物质。它们分别是α-蒎烯,β-蒎烯,柠檬烯,α-萜品醇乙酸酯4种物质,其中尤以α-蒎烯和β-蒎烯2种物质作用最显著。产卵生测实验中,4种活性挥发性物质的混合物分别与它们的单一成分、α-蒎烯、β-蒎烯分别与除去它们后的混合物进行比较。结果显示,与对照相比,它们均能对松毛虫赤眼蜂的产卵寄生率产生显著影响,该结果也和Y型嗅觉仪下的实验结果基本一致。但在单一物质和混合物对松毛虫赤眼蜂的寄生率影响比较中,混合物并没有使松毛虫赤眼蜂产生最高的寄生率,这说明可能是某种单一物质在其寄生过程中起主导作用。
The olfactory behavior of Trichogramma dendrolimi Matsumura to nine pine needles volatiles were investigated with Y-tube olfactometer,four volatiles were identified could affect the olfactory behavior of T.dendrolimi,they were α-pinene,β-pinene,limonene and α-terpineol acetate,but it should be noted that α-pinene and β-pinene have a most significant effect.Bioassays to parasitic behavior of T.dendrolimi were conducted in laboratory,we mixed different compounds by these four or three volatiles to compare single components to investigate the percentage of parasitism,the results showed that both of them could affect the percentage of parasitism significantly,and this result also same as the conclusion of olfactory behavior experiment basically.However,compounds had not caused highest percentage of parasitism compared single components,this may suggested some single components play a dominant role in parasitic behavior of T.dendrolimi.
出处
《昆虫知识》
CSCD
北大核心
2008年第6期944-949,共6页
Entomological Knowledge
基金
国家自然基金重点项目(30330490)
