槐绿虎天牛对不同诱剂的EAG反应及诱剂的诱捕效果

EAG response and effects of different attractions on Chlorophorus diadema (Motschulsky)

本实验研究了14种引诱剂对槐绿虎天牛的诱捕效果,结果表明,14种引诱剂对槐绿虎天牛都有一定的引诱效果.野外诱捕结果显示:引诱剂D的效果最好,日平均诱捕率为0.82%;H次之,为0.64%;G最弱,日平均诱捕率为0.11%.所用诱剂对其它鞘翅目、鳞翅目、膜翅目、半翅目、双翅目、同翅目和脉翅目昆虫也有引诱作用.特别是D诱剂对金龟子科害虫的诱集效果极好.经触角电位测定,D诱剂的EAG反应相对值最高,为1.95;I诱剂次之,为1.80.表明D和I都是很好的诱剂配方.各诱剂所捕到槐绿虎天牛雌雄比约为2∶1.

A comparative study on the field attraction effects of different amounts on Chlorophorus diadema showed that fourteen test attractants had a certain trapping ability to Chlorophorus diadema,among which,D was the strongest,with a mean trappability of 0.82%;H took the second place,with a mean trappability of 0.64%;while G was the weakest,with a mean trappability of 0.11%.And they were being attractive to other species of Coleoptera,Loleoptera,Hymenoptera,Hemiptera,Diptera,Homoptera and Neuroptera.Especially,D had the strongest attractions on Scarabaeidae.While,mean relative EAG values of D was 1.95,I was 1.80,and the results showed that both of D and I had the excellent trapping effects.Sexual ratio（female∶male） of trapped Chlorophorus diadema was 2∶1.