Comparison of baited bottle and multiple-funnel traps for ambrosia beetles (coleoptera: curculionidae: scolytinae) in eastern united states

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:  Curculio- nidae:   Scolytinae)   at   four   locations   in  the   eastern   United   States.   Our results   were geographically  inconsistent  for  three  target  species.  Catches  of  Xylosandrus  germanus (Blandford)  in  Ohio  were  greater  in  bottle  traps  than  in  funnel  traps  while  the  opposite occurred  in  Virginia,  with  no  difference  in  Indiana.  Catches  of  Xyleborinus  saxesenii (Ratzeburg) were greater in funnel traps than in bottle traps in Georgia, Indiana, and Virginia but no different in Ohio. Similarly, catches of Xylosandrus crassiusculus (Motschulsky) were greater in funnel traps than in bottle traps in Georgia and Virginia but not in 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  onoharaense (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. Differences in trap height, bottle size, and forest composition may have contributed to  between-site  variability  in  trap  type  preferences,  thereby  requiring  further  research  to resolve these issues.

  • Citation: Miller, D.R.; Crowe, C.M.; Ginzel, M.D.; Ranger, C.M.; Schultz, P.B. 2018. Comparison of Baited Bottle and Multiple-Funnel Traps for Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) in Eastern United States 1 . Journal of Entomological Science. 53(3): 347-360. https://doi.org/10.18474/jes17-107.1.
  • Keywords: ambrosia beetles, kairomones, ethanol, trap type, geographical variation
  • Posted Date: November 6, 2018
  • Modified Date: July 9, 2019
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