Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, 59717, USA.
Agricultural Research Service, United States Department of Agriculture, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL, 32608, USA.
Sci Rep. 2019 Sep 10;9(1):13051. doi: 10.1038/s41598-019-49459-5.
The northern tamarisk beetle Diorhabda carinulata (Desbrochers) was approved for release in the United States for classical biological control of a complex of invasive saltcedar species and their hybrids (Tamarix spp.). An aggregation pheromone used by D. carinulata to locate conspecifics is fundamental to colonization and reproductive success. A specialized matrix formulated for controlled release of this aggregation pheromone was developed as a lure to manipulate adult densities in the field. One application of the lure at onset of adult emergence for each generation provided long term attraction and retention of D. carinulata adults on treated Tamarix spp. plants. Treated plants exhibited greater levels of defoliation, dieback and canopy reduction. Application of a single, well-timed aggregation pheromone treatment per generation increased the efficacy of this classical weed biological control agent.
北方柽柳象甲 Diorhabda carinulata（Desbrochers）已获准在美国释放，用于对入侵的柽柳属物种及其杂种（柽柳属）的经典生物防治。D. carinulata 用来定位同种个体的聚集信息素是其定殖和繁殖成功的基础。一种专门的基质被开发出来，用于这种聚集信息素的控制释放，作为一种诱饵来操纵野外的成虫密度。在每一代成虫出现时使用一次诱饵，可长期吸引和保留处理过的柽柳属植物上的 D. carinulata 成虫。处理过的植物表现出更高程度的落叶、枯枝和树冠减少。每代使用一次单一、适时的聚集信息素处理，可提高这种经典杂草生物防治剂的效果。
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