Effects of chipping, grinding, and heat on survival of emerald ash borer, Agrilus planipennis (Coleoptera +Buprestidae), in chips

摘要: Abstract The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), a phloem-feeding insect from Asia, was identified in 2002 as the cause of widespread (Fraxinus sp.) mortality southeastern Michigan and Essex County, Ontario. Most larvae overwinter nonfeeding prepupae outer sapwood or thick bark large trees. In series studies, we evaluated effects grinding, chipping, heat treatment on survival A. material. Heavily infested bolts containing roughly 8,700 were processed by horizontal grinder with either 2.5- 10-cm screen. There no evidence chips 2.5-cm screen, but eight viable recovered We chiseled additional sentinel logs buried 45 each chip pile. total, six survived winter, found sign adult emerge...