Skip to Main Content
Ethanol attracts scolytid beetles to Phytophthora ramorum cankers on coast live oakAuthor(s): Rick G. Kelsey; Maia M. Beh; David C. Shaw; Daniel K. Manter
Source: Journal of Chemical Ecology. 39(4): 494-506
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
PDF: View PDF (410.46 KB)
DescriptionEthanol in sapwood was analyzed along vertical transects, through small spot cankers and larger basal cankers, of Phytophthora ramorum-infected stems of Quercus agrifolia at three sites in California. Trees with large basal cankers, known to attract scolytid beetles, had a 4.3 times higher ethanol level than trees with spot cankers that attract fewer beetles. We conclude that ethanol in P. ramorum cankers functions as a primary host attractant for scolytid beetles and is an important link in colonization of these cankers and accelerated mortality of Q. agrifolia. The results of this research shed light on the chemical ecology behind the focused scolytid attacks on P. ramorum-infected coast live oaks, and lay the groundwork for future efforts to prolong the survival of individual trees of this keystone species.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationKelsey, Rick G.; Beh, Maia M.; Shaw, David C.; Manter, Daniel K. 2013. Ethanol attracts scolytid beetles to Phytophthora ramorum cankers on coast live oak. Journal of Chemical Ecology. 39(4): 494-506.
KeywordsQuercus agrifolia, ambrosia beetles, bark beetles, deterrents, ethanol, Phytophthora ramorum, sudden oak death
- Chemical ecology of sudden oak death/ambrosia beetle interactions
- Ethanol attracts scolytid beetles to Phytophthora ramorum cankers on coast live oak [Abstract]
- Relationships between Phytophthora ramorum canker (sudden oak death) and failure potential in coast live oak
XML: View XML