| Title: | Establishing Diorhabda carinulata: Impact of Release Disturbances on Pheromone Emission and Influence of Pheromone Lures on Establishment |
| Author(s): | Gaffke AM; Sing SE; Dudley TL; Bean DW; Russak JA; Mafra-Neto A; Peterson RKD; Weaver DK; |
| Address: | "Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, 59717, USA. alexander.gaffke@usda.gov. Agricultural Research Service, United States Department of Agriculture, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL, 32608, USA. alexander.gaffke@usda.gov. USDA Forest Service, Rocky Mountain Research Station, Bozeman, MT, 59717, USA. Marine Science Institute, University of California, Santa Barbara, CA, 93106, USA. Colorado Department of Agriculture, Palisade Insectary, Palisade, CO, 81526, USA. Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA. ISCA Technologies, Inc., Riverside, CA, 92507, USA. Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, 59717, USA" |
| DOI: | 10.1007/s10886-020-01176-4 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Before weed biocontrol insects are transported and released in a new area, they are commonly collected into small paper containers, chilled, and kept under dark conditions. This process can be termed a pre-release protocol. The influence of a pre-release protocol on establishment success of a gregarious biological control agent was assessed using the northern tamarisk beetle, Diorhabda carinulata (Desbrochers), and its exotic, invasive host plant saltcedar (Tamarix spp.). Pre-release protocol impacts on aggregation pheromone production by D. carinulata were characterized under controlled conditions. Additional experiments were undertaken to determine if deployment of aggregation pheromone lures might enhance the agent's persistence at release sites. Adults that experienced the pre-release protocol produced less aggregation pheromone compared to undisturbed adults. Olfactometer bioassays indicated that a cohort of adults subjected to the pre-release protocol were less attractive to other adults than a control cohort. Efficacy of aggregation pheromone-based lures to retain adults at release sites was evaluated by comparing capture numbers of adult beetles at paired treatment and control release sites, 10-14 days after the release of 300, 500, or 1000 individuals. A greater number of adult D. carinulata were captured where the pheromone lures had been deployed compared to control release sites. Application of aggregation pheromone when a new release of D. carinulata is planned should allow biological control practitioners to increase retention of beetles at a release site" |
| Keywords: | "Animals Coleoptera/metabolism/*physiology Introduced Species *Pest Control, Biological Pheromones/*metabolism Population Dynamics *Tamaricaceae *Weed Control Aggregation Biological control Biological invasion Release protocol Weed control;" |
| Notes: | "MedlineGaffke, Alexander M Sing, Sharlene E Dudley, Tom L Bean, Daniel W Russak, Justin A Mafra-Neto, Agenor Peterson, Robert K D Weaver, David K eng 2020/04/03 J Chem Ecol. 2020 Apr; 46(4):378-386. doi: 10.1007/s10886-020-01176-4. Epub 2020 Apr 2" |
