Premium
Effect of different semiochemicals blends on spruce bark beetle, I ps typographus ( C oleoptera: S colytidae)
Author(s) -
Xie ShouAn,
Lv ShuJie
Publication year - 2013
Publication title -
entomological science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 28
eISSN - 1479-8298
pISSN - 1343-8786
DOI - 10.1111/j.1479-8298.2012.00555.x
Subject(s) - semiochemical , bark beetle , pheromone , attraction , kairomone , biology , anthonomus , curculionidae , sex pheromone , pest analysis , botany , bark (sound) , ecology , predation , linguistics , philosophy
The spruce bark beetle, I ps typographus , is a recent new introduction to the Q ilian M ountains of C hina. An outbreak of these beetles has infested over 0.03 million hectares of spruce forests in this area. Although primary attraction to volatiles has been clearly demonstrated for I . typographus , the existence and role of attraction to insect‐produced pheromones have been widely debated. Currently, commercial lures for I . typographus include only the volatiles ipsdienol, cis ‐verbenol, trans ‐verbenol, 2‐methyl‐3‐buten‐2‐ol and 2‐phenylethanol in E urope. Several potential pheromone candidates have been identified for I . typographus . Our GC – MS and GC – FID analyses volatiles from hindgut extracts of I . typographus in different attack phases demonstrated that the 2‐methyl‐3‐buten‐2‐ol, ipsdienol, cis ‐verbenol and trans ‐verbenol as major hindgut components, and ipsenol, 2‐phenylethanol, trans ‐ myrtenol and verbenone as minor components. We tested various combinations of semiochemical candidates, to determine an optimal blend. Our results suggest that addition of 2‐methyl‐3‐buten‐2‐ol to either ipsenol alone, or to blends of ipsenol and other semiochemical candidates, significantly enhanced attraction of I . typographus . Therefore, a simple lure consisting of ipsenol and 2‐methyl‐3‐buten‐2‐ol would be an optimal blend of I . typographus in the Q ilian M ountains, C hina. We conclude that this optimal semiochemical blend may provide an effective biological pest control method for use in forest ecosystem against I . typographus .