Bentz B J, Kegley S, Gibson K, Thier R
USDA Forest Service, Rocky Mountain Research Station, 860 N. 1200 East, Logan, UT 84321, USA.
J Econ Entomol. 2005 Oct;98(5):1614-21. doi: 10.1603/0022-0493-98.5.1614.
The efficacy of verbenone as a stand-level protectant against mountain pine beetle, Dendroctonus ponderosae Hopkins, attacks was tested in lodgepole and whitebark pine stands at five geographically separated sites, including three consecutive years at one site. Forty and 20 high-dose pouches, with a verbenone emission rate up to 50 mg/d per pouch, were spaced in a grid pattern throughout 0.40-ha plots, replicated up to six times at each site. Although the verbenone treatment did not prevent beetles from dispersing through treated stands, attacking large-diameter trees most frequently, the overall number of trees attacked was, on average, reduced significantly compared with nontreated stands. In a few blocks each year, verbenone-treated plots had more attacked trees than controls. These blocks tended to have a large emerging beetle population, exceeding 140 previously attacked trees within the hectare including and surrounding the treated area. Additional research is needed on the behavioral role of verbenone in mountain pine beetle population dynamics and quantification of the infestation level above which treatment efficacy tends to be reduced.
在五个地理上相隔的地点，包括在一个地点连续三年，对马鞭烯酮作为一种林分水平的保护剂抵御山地松甲虫（Dendroctonus ponderosae Hopkins）侵害的效果进行了测试，测试地点包括黑松林和白皮松林。每袋马鞭烯酮释放速率高达50毫克/天的40个和20个高剂量药袋，以网格模式分布在整个0.40公顷的样地中，每个地点重复设置多达6次。尽管马鞭烯酮处理并不能阻止甲虫穿过处理过的林分进行扩散，且甲虫最常攻击大径级树木，但与未处理的林分相比，受攻击树木的总数平均显著减少。每年在一些小区中，经马鞭烯酮处理的样地中受攻击的树木比对照样地更多。这些小区往往有大量新出现的甲虫种群，在包括处理区域及其周边的公顷范围内，先前受攻击的树木超过140棵。需要对马鞭烯酮在山地松甲虫种群动态中的行为作用以及处理效果趋于降低时的侵染水平量化进行更多研究。
