USDA-APHIS-PPQ-CPHST, Otis Laboratory, 1398 West Truck Rd., Buzzards Bay, Massachusetts 02542, USA.
USDA APHIS PPQ, Emerald Ash Borer Project, 5936 Ford Court, Suite 200, Brighton, Michigan 48116, USA.
J Econ Entomol. 2013 Dec;106(6):2407-14. doi: 10.1603/ec13013.
The current emerald ash borer survey trap used in the United States is a prism trap constructed from a stock purple corrugated plastic. In recent years, several colors (particularly shades of green and purple) have been shown to be more attractive to the emerald ash borer than this stock color. Our goal was to determine if plastics produced with these colors and incorporated into prism traps can improve and serve as a new alternative to plastics already in use for the emerald ash borer survey. The plastics were tested in moderate to heavily infested areas in Michigan in two initial studies to test their effectiveness at catching the emerald ash borer. Because results from studies performed in heavily infested sites may not always correspond with what is found along the edges of the infestation, we compared trap catch and detection rates (recording at least one catch on a trap over the course of the entire trapping season) of several trap types and colors at sites outside the core of the currently known emerald ash borer infestation in a nine-state detection tool comparison study. Two of the new plastics, a (Sabic) purple and a medium-dark (Sabic) green were incorporated into prism traps and tested alongside a standard purple prism trap and a green multifunnel trap. In areas with lower emerald ash borer density, the new purple (Sabic) corrugated plastic caught more beetles than the current purple prism trap, as well as more than the medium-dark green (Sabic) prism and green multifunnel traps. Sabic purple traps in the detection tools comparison study recorded a detection rate of 86% compared with 73, 66, and 58% for the standard purple, Sabic green, and green multifunnel traps, respectively. These detection rates were reduced to 80, 63, 55, and 46%, respectively, at low emerald ash borer density sites.
当前美国使用的截梢郭公虫调查诱捕器是由库存紫色波纹塑料制成的棱柱形诱捕器。近年来，几种颜色（尤其是绿色和紫色调）比这种标准颜色对截梢郭公虫更具吸引力。我们的目标是确定是否可以使用这些颜色制成的塑料并将其纳入棱柱形诱捕器中，以改善并作为已经用于截梢郭公虫调查的塑料的替代品。在密歇根州中度至重度感染地区进行了两项初步研究，以测试这些塑料在捕捉截梢郭公虫方面的效果。由于在重度感染地区进行的研究结果可能并不总是与感染边缘的情况相对应，因此我们在九个州的检测工具比较研究中，在感染核心区以外的地点比较了几种诱捕器类型和颜色的诱捕器捕获率和检测率（在整个诱捕季节的过程中，记录至少一次捕获）。两种新型塑料，一种（沙特基础工业公司）紫色和一种中暗（沙特基础工业公司）绿色被纳入棱柱形诱捕器中，并与标准紫色棱柱形诱捕器和绿色多漏斗诱捕器进行了测试。在截梢郭公虫密度较低的地区，新型紫色（沙特基础工业公司）波纹塑料比当前的紫色棱柱形诱捕器捕获了更多的甲虫，也比中暗绿色（沙特基础工业公司）棱柱形和绿色多漏斗诱捕器捕获了更多的甲虫。在检测工具比较研究中，沙特基础工业公司紫色诱捕器的检测率为 86%，而标准紫色、沙特基础工业公司绿色和绿色多漏斗诱捕器的检测率分别为 73%、66%和 58%。在截梢郭公虫密度较低的地区，这些检测率分别降低至 80%、63%、55%和 46%。
