›› 2004, Vol. 47 ›› Issue (6): 695-700.

• RESEARCH PAPERS •     Next Articles

Identification and electroantennal olfactory and behavioral tests of hindgut_produced volatiles of the red turpentine beetle, Dendroctonus valens LeConte (Coleoptera: Scolytidae)

YAN Zheng-Liang, FANG Yu-Ling,SUN Jiang-Hua, ZHANG Zhong-Ning*   

  • Online:2004-12-20 Published:2004-12-20
  • Contact: ZHANG Zhong-Ning

Abstract: An exotic invasive pine pest, red turpentine beetle, Dendroctonus valens LeConte (Scolytidae), was studied. GC-MS analysis confirmed the existence of verbenol and verbenone as well as the host volatile s (α-pinene, β-pinene, 3-carene, myrcene and limonene) in hindguts of the beetle. Verbenol, verbenone and 3-(+)-carene, the most effective attractant in field test, all elicited electroantennal responses in EAG (electroantennogram) test. Indoor olfactory tests with a Y-type tube were conducted. Verbenone was attractive to D. valens at 1 μL/mL, and its effect could parallel that of 3-carene; however, 100 μL/mL of verbenone was somehow repellent to th e beetle. Verbenol was repellent to D. valens in all dosages.

Key words: Dendroctonus valens, hindgut volatiles