2013 Annual Report
1a.Objectives (from AD-416):
The objective of this project is to develop sensitive monitoring tools that enable accurate assessment of presence, abundance, and seasonal activity of the brown marmorated stink bug (BMSB).
1b.Approach (from AD-416):
The approach to this project will be: .
1)participate cooperatively with scientists at USDA-ARS, Beltsville, MD, and Virginia Tech in developing effective monitoring tools;.
2)identify attractive visual stimuli that can be incorporated into a trap design; and.
3)evaluate behavioral responses to candidate olfactory stimuli that can be incorporated into a trap to improve overall attractiveness in the field.
Based on results from 2011, black pyramid traps were constructed and distributed to cooperators in nine states including WV, VA, MD, NC, NJ, PA, OR, NY, and DE in 2012. This trial compared early season and season-long attractiveness of newly identified brown marmorated stink bug (BMSB) pheromone, commercially available methyl (2E, 4E, 6Z)-decatrieonate and unbaited traps. All traps were being deployed at the periphery of specialty or row crops bordered by natural wooded landscapes. Traps baited with this stimulus have captured ~10x more BMSB adults than unbaited traps. The newly identified pheromone was attractive season-long to nymphs and adults. Based on results from 2011 field andlaboratory results, black pyramid traps baited with promising light-based stimuli were built and deployed in commercial orchards. Three treatments were compared: full spectrum white, black (ultraviolet), and visible blue light. Overall, traps were baited with white lights. Materials required to construct a single trap cost ~$50.00 [much lower cost than standard blacklight traps ($2,500 per unit)], though they currently require an electrical source. A list of relevant literature on BMSB from Japan, Korea, and China has now been completely translated. An invited comprehensive review article will soon apear in Environmental Entomology.