Thiemann Danielle, Lopez Vanessa, Ray Ann M, Cipollini Don
Department of Biological Sciences, Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435 (
Department of Biology, Xavier University, 3800 Victory Pkwy, Cincinnati, OH 45207 (
Environ Entomol. 2016 Aug;45(4):961-6. doi: 10.1093/ee/nvw073. Epub 2016 Jun 20.
Emerald ash borer, Agrilus planipennis Fairmaire, is an invasive insect that has caused widespread mortality of ash species in North America. The ability of emerald ash borer to utilize white fringetree as an alternate host was reported recently. We aimed to determine how long white fringetree has been under attack from emerald ash borer, the degree of attack, and the overall success of this beetle on this novel host. Stems from three of nine infested white fringetrees collected from the Dayton and Cincinnati, OH, areas in the winter of 2015 yielded four live adult emerald ash borers after being held in rearing containers, and numerous older exit holes were observed. Measurement and aging of feeding galleries on these stems indicated that emerald ash borer has been using this species since 2011, at least, with peak gallery densities reached in 2012 and 2013 on most of the harvested trees. On average, 32 galleries per square meter were found in these stems with about one-third of them being indicative of fourth-instar larvae. This supports the assertion that emerald ash borer has been using white fringetree as a host plant with moderate to good success for as long as ash species in these particular areas have been utilized.
光肩星天牛（Agrilus planipennis Fairmaire）是一种入侵性昆虫，已导致北美洲的梣属树种大量死亡。最近有报道称光肩星天牛能够将美国流苏树作为替代寄主。我们旨在确定美国流苏树遭受光肩星天牛攻击的时间长度、攻击程度以及这种甲虫在这种新寄主上的总体成功情况。2015年冬季从俄亥俄州代顿和辛辛那提地区采集的9株受侵染的美国流苏树中，有3株的茎干在饲养容器中放置后，产出了4只活的成年光肩星天牛，并且观察到了许多较老的羽化孔。对这些茎干上取食坑道的测量和年代测定表明，至少从2011年起光肩星天牛就一直在利用这种树种，在大多数采伐的树木上，坑道密度峰值出现在2012年和2013年。这些茎干上平均每平方米发现32个坑道，其中约三分之一表明是四龄幼虫。这支持了这样一种说法，即只要这些特定地区的梣属树种被利用，光肩星天牛就一直在将美国流苏树作为寄主植物，且取得了中度到良好的成效。
