Location: Commodity Protection and Quality Research
Title: Confirmatory evaluation of eFUME for control of brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae)Author
Corbett, Stephen | |
Cullum, John | |
ABRAMS, ADELAINE - University Of California, Davis | |
RODRIGUEZ, MATTHEW - University Of California, Davis | |
Leskey, Tracy | |
Walse, Spencer |
Submitted to: Journal of Economic Entomology
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 4/17/2023 Publication Date: 5/11/2023 Citation: Corbett, S.M., Cullum, J.P., Abrams, A.E., Rodriguez, M.S., Leskey, T.C., Walse, S.S. 2023. Confirmatory evaluation of eFUME for control of brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae). Journal of Economic Entomology. 116(3):771-778. https://doi.org/10.1093/jee/toad064. DOI: https://doi.org/10.1093/jee/toad064 Interpretive Summary: The governments of Australia and New Zealand require a phytosanitary treatment to control adult brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), as overwintering aggregations have been intercepted in the importation pathway of various non-horticultural consignments, including vehicles. This research yielded results, in the form of efficacious fumigation schedules, that were used to support the adoption of eFUME, a 16.7% by mass dilution of ethyl formate in carbon dioxide,as an approved phytosanitary treatment for BMSB control. As such, this research demonstrates further compliance with United Nations and US government goals of minimizing unnecessary use of Quarantine Preshipment (QPS) methyl bromide. Technical Abstract: The governments of Australia and New Zealand require a phytosanitary treatment to control adult brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), as overwintering aggregations have been intercepted in the importation pathway of various non-horticultural consignments, including vehicles. The commercialized fumigant, eFUME, a 16.7% by mass dilution of ethyl formate in carbon dioxide, resulted in complete control of ca. 1000 field-collected naturally diapausing BMSB in each of three independent trials at ca.10 °C (mean ± 2s) when ethyl formate levels in enclosure headspace were maintained steady-state at ca. 14.5 mg/L for 4 hours to yield Ct exposures ranging from 57.9 to 63.1 mg h/ L. Consistent with previous findings involving laboratory formulations and greenhouse reared BMSB, these confirmatory methods and results further inform technical and operational features of commercial practice. |