华山松大小蠹对华山松韧皮部不同溶剂粗提物的行为反应

Behavioral Responses of Dendroctonus armandi Adults to Host Volatiles and Their Own Body Extracts

采用3种溶剂(正己烷、乙醚和正戊烷)提取华山松韧皮部有效成分,通过Y型嗅觉仪测定华山松大小蠹对韧皮部粗提物的行为反应。结果表明:3种粗提物对华山松大小蠹雌成虫的引诱率从大到小依次为正己烷>正戊烷>乙醚;对雄成虫的引诱率从大到小依次为正己烷>乙醚>正戊烷。试验结果说明,正己烷作为有机溶剂,在采取浸提法提取华山松韧皮部时效果好于正戊烷和乙醚。

Y-tube olfactometer was used to test the behavioral selectivity of Dendroctonus armandi to vola- tiles,which were extracted by different organic solvent. The data showed that the attractability of three volatiles to the female adults was different： hexane 〉 pentane 〉 aether, and the attracability of three vola- tiles to the male adults was different： hexane 〉 aether 〉 pentane, displaying that hexane was better than ae- ther and pentane as an organic solvent.