Skip to main content
ARS Home » Midwest Area » Wooster, Ohio » Application Technology Research » Research » Publications at this Location » Publication #346017
Title: Comparison of baited bottle and multiple-funnel traps for ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) in Eastern USA

Author
item MILLER, DAN - Forest Service (FS)
item CROWE, CHRISTOPHER - Forest Service (FS)
item GINZELL, MATT - Purdue University
item Ranger, Christopher
item SCHULTZ, PETER - Virginia Polytechnic Institution & State University

Submitted to: Journal of Entomological Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/21/2017
Publication Date: N/A
Citation: N/A

Interpretive Summary: We compared bottle traps to 4-unit multiple-funnel traps baited with ethanol and conophthorin for capturing ambrosia beetles at four locations in eastern USA. Our results were geographically inconsistent for three target species of exotic ambrosia beetles. Catches of Xylosandrus germanus (Blandford) were greater in bottle traps than funnel traps in Ohio, while the opposite occurred in Virginia and no difference in Indiana. Catches of Xyleborinus saxesenii (Ratzeburg) were greater in funnel traps than bottle traps in Georgia, Indiana and Virginia but no difference in Ohio. Similarly, catches of Xylosandrus crassiusculus (Motschulsky) were greater in funnel traps than bottle traps in Georgia and Virginia but not Indiana. Bottle traps caught more Anisandrus maiche Stark in Ohio and Anisandrus sayi (Hopkins) in Indiana whereas more of the following species were caught in funnel traps: Ambrosiophilus atratus (Eichhoff) in Virginia, Cyclorhipidion bodoanum (Reitter) and Dryoxylon onoharaensum (Murayama) in Georgia, Euwallacea validus (Eichhoff) in Ohio, and Cyclorhipidion pelliculosum (Eichhoff) and Monarthrum fasciatum (Say) in Indiana. Catches of Cnestus mutilatus (Blandford) in Georgia and Monarthrum mali (Fitch) in Indiana were unaffected by trap type. Variability in beetle catches among sites could be due to differences in geography, weather conditions, trap heights, or trapping locations with respect to wooded habitats.

Technical Abstract: We compared bottle traps to 4-unit multiple-funnel traps (both baited with ethanol and conophthorin) for relative efficacy in catching ambrosia beetles (Coleoptera: Curculionidae) at four locations in eastern USA. Our results were geographically inconsistent for three target species. Catches of Xylosandrus germanus (Blandford) were greater in bottle traps than funnel traps in Ohio, while the opposite occurred in Virginia and no difference in Indiana. Catches of Xyleborinus saxesenii (Ratzeburg) were greater in funnel traps than bottle traps in Georgia, Indiana and Virginia but no difference in Ohio. Similarly, catches of Xylosandrus crassiusculus (Motschulsky) were greater in funnel traps than bottle traps in Georgia and Virginia but not Indiana. Bottle traps caught more Anisandrus maiche Stark in Ohio and Anisandrus sayi (Hopkins) in Indiana whereas more of the following species were caught in funnel traps: Ambrosiophilus atratus (Eichhoff) in Virginia, Cyclorhipidion bodoanum (Reitter) and Dryoxylon onoharaensum (Murayama) in Georgia, Euwallacea validus (Eichhoff) in Ohio, and Cyclorhipidion pelliculosum (Eichhoff) and Monarthrum fasciatum (Say) in Indiana. Catches of Cnestus mutilatus (Blandford) in Georgia and Monarthrum mali (Fitch) in Indiana were unaffected by trap type. The reasons for the variation in responses of ambrosia beetles to trap type are unknown at this time, requiring further research to resolve these issues.