Effects of trap type, placement and ash distribution on emerald ash borer captures in a low density site

Abstract

Effective methods for early detection of newly established, low density emerald ash borer (Agrilus planipennis Fairmaire) infestations are critically needed in North America. We assessed adult A. planipennis captures on four types of traps in a 16-ha site in central Michigan. The site was divided into 16 blocks, each comprised of four 50- by 50-m cells. Green ash trees (Fraxinus pennsylvanica Marshall) were inventoried by diameter class and ash phloem area was estimated for each cell. One trap type was randomly assigned to each cell in each block. Because initial sampling showed that A. planipennis density was extremely low, infested ash logs were introduced into the center of the site. In total, 87 beetles were captured during the summer. Purple double-decker traps baited with a blend of ash leaf volatiles, Manuka oil, and ethanol captured 65% of all

Citation

McCullough, Deborah G.; Siegert, Nathan W.; Poland, Therese M.; Pierce, Steven J.; Ahn, Su Zie. 2011. Effects of trap type, placement and ash distribution on emerald ash borer captures in a low density site. Environmental Entomology. 40(5): 1239-1252.