SAES-422 Multistate Research Activity Accomplishments Report
Sections
Status: Approved
Basic Information
- Project No. and Title: WERA1021 : Spotted Wing Drosophila Biology, Ecology, and Management
- Period Covered: 10/01/2018 to 09/30/2019
- Date of Report: 07/01/2020
- Annual Meeting Dates: 11/19/2019 to 11/19/2019
Participants
1. Dominique Ebbenga, University of Minnesota; 2. Hannah Burrack, NC State University; 3. Greg Loeb, Cornell University; 4. Frank Zalom, UC Davis; 5. Dara Stockton, Cornell University; 6. Pablo Urbaneja-Bernat; 7. Pierre Girod, Rutgers University; 8. Tim Johnson, Marrone Bio Innovations; 9. Stephen Cook, University of Idaho; 10. Larry Gut, Michigan State University; 11. Shaohui Wu, University of Georgia; 12. Zain Syed, University of Kentucky; 13. Valerio Rossi Stacconi, Oregon State University; 14. Kent Daane, UC Cooperative Extension; 15. Diane Alston, Utah State University; 16. Christelle Guedot, University of Wisconsin; 17. Doug Pfeiffer, Virginia Tech; 18. Ben Jaffe, University of Wisconsin; 19. Todd Schlenke, University of Arizona; 20. Nikhil Mallampalli, EPA; 21. Peter Ridland, University of Melbourne; 22. Kelly Hamby, University of Maryland; 23. Craig Roubos, University of Georgia; 24. Heather Andrews, Oregon State University; 25. Jonathan Dregni, University of Minnesota; 26. Justin Renkema; 27. Steve Van Timmeren, Michigan State University; 28. Mark Asplen, Metropolitan State University; 29. Jana Lee, USDA
Annual Report & Minutes—2019
WERA 1021 Multi-state Research Project on Spotted-Wing Drosophila, Drosophila suzukii
The annual meeting of WERA 1021 in 2019 was held in conjunction with the Annual Entomological Society of America (ESA) as a formal Organized Meeting on the program. The meeting, entitled “Organized Meeting: WERA 1021: An Update on Biological Control Research Against Spotted-Wing Drosophila (Drosophila suzukii),” occurred Tuesday, 11/19/2019, from 1:30pm – 4:50 pm. A composite project summary is given for each of the four objectives and lists of relevant publications and meeting attendees are also included as part of the report.
Meeting Agenda:
Concluding Remarks & Business Meeting Minutes:
- Chair Asplen thanked all of the speakers for their excellent presentations, and then opened the business meeting. The central question discussed related to the format of the meeting. Attendees enjoyed the format of a specific research focus (e.g., biological control), however, there was considerable discussion of how these meetings should move forward. Several ideas were discussed, including: (1) the use of central research themes that are used at all future meetings, with one to two presentations covering each theme; (2) fewer presentations with more time for discussion of ideas; (3) continued use of a central theme, as used in the 2019 meeting. Attendees agreed that discussion of any changes should occur via online polling after the meeting.
- Food and drinks were not offered at the 2019 meeting in an effort to lower costs. As a result, no meeting fee was required for attendees. This change was overwhelming supported, and will be adopted moving forward.
- Jana Lee, USDA, was elected as the next Chair for 2020. Hannah Burrack, North Carolina State University, was elected as the next Vice Chair for 2020. Each agreed to conduct the online polling regarding the structure of the next meeting.
- Chair Asplen adjourned the meeting at 4:30 PM.
Accomplishments
Objective 1: Improve our understanding of SWD populations and develop tools to accurately predict SWD risk.
Multi-state trapping efforts have continued across the soft fruit growing regions of the country. With greater advances in trapping technology, emphasis has increasingly switched from using simple homemade baits (e.g., apple cider vinegar, yeast cultures) to commercially available lures. Also of note has been a marked increase in studies of putative overwintering populations of SWD, which has come with a greater understanding of the ‘winter morph’ of the pest.
Objective 2: Optimize use of pesticides to reduce reliance upon them and disruption of beneficials.
Novel insecticides have been examined against SWD during this period, showing that (at least in lab trials) Erythritol and novaluron increased SWD mortality. In addition, to better serve the needs of organic growers, essential oil impacts were assessed in raspberry. Promising results were found for Ecotrol Plus (rosemary, geraniol, and peppermint blend) in field raspberry trials. Finally, new research indicates the critical importance of spray coverage in increasing effectiveness against SWD adults in existing chemical control programs.
Objective 3: Develop non-pesticide based tactics for SWD management and evaluate sustainable SWD management programs to provide best management practices for SWD.
Research efforts on putative biological control agents for SWD continue, including: (1) augmentative releases of the generalist pupal parasitoid Pachycrepoideus vindemmiae, (2) sentinel trapping for parasitoids in Hawai’i’, which revealed a different strain of the larval parasitoid Ganapsis brasiliensis than the one being examined for release in the mainland US, (3) the demonstration of lacking effectiveness of the entomopathogen Beauveria bassiana in field cages. Another major research effort has been in the use of chemical repellents (anthracnose, azadirechtin, ‘JZX’, ‘DCX’) and mulches (plastics, biochar) as forms of cultural control against SWD.
Objective 4: Coordinate grant-funded research and extension efforts to minimize redundancy and ensure knowledge transfer.
Members from the University of Wisconsin, Michigan State University, and Cornell University have come together to develop and submit a SCRI SREP proposal addressing SWD population dynamic and management. Multistate efforts also continue through the OREI program, led out of the University of Georgia.
Impacts
- WERA 1021 has continued to have far-reaching impacts for the small fruit industry in the US. Farmers and consumers have benefitted in several important ways, including (but not limited to): (1) more effective lures and trap designs for SWD, (2) new chemistries for chemical control, as well as research on insecticide resistance, (3) evaluation of both potentially effective and not effective biological control agents for SWD, and (4) the promise of potential new cultural controls in the forms of mulches and repellents, which may be especially important to organic/near-organic producers.
- The 2019 WERA 1021 meeting in Saint Louis, MO brought considerable attention to the biological control arena of SWD management, with 7 oral presentations offered during the symposium. Covered topics included: (1) the state of the current classical biological control effort for SWD, (2) an overview of the general mechanisms by which Drosophila species protect themselves from parasitoid attack, which could lead to new research in the SWD system, and (3) updates on the traditionally less-emphasized areas of augmentative and conservation biological control in SWD research.
Publications
WERA 1021 Publications (Research & Extension Combined):
Alston DG, LR Spears, C Nischwitz, and C Burfitt. 2016. Invasive fruit pest guide for Utah: insect and disease identification, monitoring, and management. Utah Plant Pest Diagnostic Laboratory and USU Extension.
Cha, D.H., Hesler, S.P., Brind’Amour, G., Wentworth, K., Villani, S., Cox, K., Boucher, M., Wallingford, A., Park, S., Nyrop, J., and Loeb, G. 2019. Evidence for contextural avoidance of the ubiquitous phytopathogen Botrytis cinerea by Drosophila suzukii. Insect Science DOI: 10.1111/1744-7917.12691.
Cloonan, K.R, Hernández-Cumplido, J., Viana de Sousa, A.L., Ramalho, D.G., Burrack, H.J, Diepenbrock, L.M, Drummond, F.A., Gut, L.J., Issacs, R, Loeb, G.M, Nielsen. A.L, Nitzsche, P., Syed, Z., Wallingford, A.K.1, Walton, V.M., and Rodriguez-Saona, C. 2019. Laboratory and field evaluation of host-related foraging odor cue combinations to attract Drosophila suzukii (Diptera: Drosophilidae). J Economic Entomology, In Press.
Digiacomo, Gigi, J. Hadrich, W.D. Hutchison, H. Peterson, & M. Rogers. 2019. Economic impact of Sotted Wing Drosophila (Diptera: Drosophilidae) yield loss on Minnesota raspberry farms: A grower survey. J. Integ. Pest Mgmt. 10(1): 11, https://doi.org/10.1093/jipm/pmz006
Ebbenga, D., E.C. Burkness & W.D. Hutchison. 2019. Exclusion netting as an alternative management strategy for Spotted-wing Drosophila (Diptera: Drosophilidae) in wine grapes. J. Econ. Entomol. 112(5): 2287–2294.
Gustafson, M.G., M.A. Rogers, E.C. Burkness & W.D. Hutchison. 2019. Efficacy of organic and conventional insecticides for Drosophila suzukii when combined with erythritol, a non-nutritive feeding stimulant. Crop Protection. 125: https://doi.org/10.1016/j.cropro.2019.104878
Holle, S., A. Tran, D. Ebbenga, E.C. Burkness & W.D. Hutchison. 2019. First detections of the African Fig Fly, Zaprionus indianus (Diptera: Drosophilidae) in Minnesota. J. Entomol. Sci. 54(1): 99-102.
Hutchison, WD, S Wold-Burkness, EC Burkness. 2019. Spotted-wing Drosophila Biology & Management Guide. UMN Extension, St. Paul. (revised: also, Hmong, Spanish, Somali) https://www.fruitedge.umn.edu/swdbiology
Kamiyama M.T. and Guédot C. 2019. Varietal and developmental susceptibility of Wisconsin tart cherry (Prunus cerasus) to spotted wing drosophila (Drosophila suzukii). Journal of Economic Entomology. 112:1789-1797. doi: 10.1093/jee/toz102
Kamiyama M.T., Schreiner Z., and Guédot C. 2019. Diversity and abundance of natural enemies of Drosophila suzukii in Wisconsin, USA fruit farms. BioControl. https://doi.org/10.1007/s10526-019-09966-w
Klick, J., Rodriguez-Saona, C.R., Hernández Cumplido, J., Holdcraft, R.J., Urrutia, W.H., da Silva, R.O., Borges, R., Mafra-Neto, A., and Seagraves, M.P. 2019. Testing a novel attract and kill strategy for Drosophila suzukii (Diptera: Drosophilidae) management. J. Insect Sci. 19(1): 3; 1–6. doi: 10.1093/jisesa/iey132.
Jaffe B.D. and Guédot C. 2019. Vertical and temporal distribution of spotted-wing drosophila (Drosophila suzukii) and pollinators within cultivated raspberries. Pest Management Science. DOI 10.1002/ps.5343
Lewis, M.T., and Hamby, K.A. 2019. Differential impacts of yeasts on feeding behavior and development in larval Drosophila suzukii (Diptera:Drosophilidae). Scientific Reports: DOI: 10.1038/s41598-019-48863-1
Lewis, M.T., Koivunen, E.E., Swett, C.L., and Hamby, K.A. 2019. Associations between Drosophila suzukii (Diptera: Drosophilidae) and fungi in raspberries. Environmental Entomology: 48(1): 68-79. DOI: 10.1093/ee/nvy167
Loeb, G., Carroll, J., Mattoon, N., Rodriguez-Saona, C., Polk, D., McDemott, L., Nielsen, A. 2019. Spotted wing drosophila IPM in raspberries and blackberries. Northeast IPM SWD Working Group, Northeastern IPM Center. https://www.northeastipm.org/ipm-in-action/publications/spotted-wing-drosophila-ipm-in-raspberries-and-blackberries/
Rendon, D., Hamby, K.A., Aresenault-Benoit, A.L.@, Taylor, C.M.^, Evans, R.K., Roubos, C.R., Sial, A.A., Rogers, M., Petran, A., Van Timmeren, S., Fanning, P., Isaacs, R. and Walton, V. 2019. Mulching as a cultural control strategy for Drosophila suzukii in blueberry. Pest Management Science: DOI: 10.1002/ps.5512
Rendon, D., Walton, V., Tait, G., Buser, J., Lemos Souza, I., Wallingford, A. Loeb, G., and Lee, J. 2019. Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly. Ecology and Evolution. DOI:10.1002/ece3.4928
Rodriguez-Saona, C., Vincent, C., and Isaacs, R. 2019. Blueberry IPM: Past successes and future challenges. Annual Review of Entomology 64: 95–114.
Rodriguez- Saona, C., Cloonan, K.R., Sanchez-Pedraza, F., Zhou, Y., Giusti, M.M., and Benrey, B. 2019. Differential susceptibility of wild and cultivated blueberries to an invasive frugivorous pest. J. Chem. Ecol. 45: 286–297.
Rodriguez-Saona, C., D. Polk, and K. Cloonan. 2019. Using red sticky traps for spotted wing drosophila. Proceedings. Atlantic Coast Agricultural Convention and Trade Show. Atlantic City, New Jersey.
Rodriguez-Saona, C, C. Michel, and N. Firbas. 2019. Efficacy of traps for monitoring spotted wing drosophila. Proceedings. Atlantic Coast Agricultural Convention and Trade Show. Atlantic City, New Jersey.
Rodriguez-Saona, C., D. Polk, and K. Cloonan 2019. Trapping for SWD vs. Infestation in Blueberries. Proceedings of the Mid-Atlantic Fruit & Vegetable Convention. Hershey, PA.
Rodriguez-Saona, C., Carroll, J., Mattoon, N., Polk, D., Loeb, G., McDemott, L., and Nielsen, A. 2019. Spotted wing drosophila IPM in blueberries. Northeast IPM SWD Working Group, Northeastern IPM Center. https://www.northeastipm.org/ipm-in-action/publications/spotted-wing-drosophila-ipm-in-blueberries/
Schöneberg, T., and Hamby, K. 2019. Potential of trellising for cultural management of spotted-wing drosophila in blackberries and raspberries. University of Maryland Extension Vegetable and Fruit News October 2019 10(7):12-14.
Spears LR, DG Alston, E Brennan, C Cannon, J Caputo, R Davis, L Hebertson, C Keyes, J Malesky, D McAvoy, AM Mull, RA Ramirez, TM Rodman, and K Watson. 2019. First detector guide to invasive insects: biology, identification, and monitoring. Utah Plant Pest Diagnostic Laboratory and USU Extension.
Spears LR, C Cannon, DG Alston, RS Davis, C Stanley-Stahr, and RA Ramirez. 2017. Spotted wing drosophila (Drosophila suzukii). Fact Sheet ENT-187-17. Utah Plant Pest Diagnostic Laboratory and USU Extension.
Spears LR, R Davis, DG Alston, and RA Ramirez. 2016. First detector guide to invasive insects: biology, identification, and monitoring. Utah Plant Pest Diagnostic Laboratory and USU Extension
Spears LR and RA Ramirez. 2014. Invasive insect field guide for Utah. Utah Plant Pest Diagnostic Laboratory and USU Extension.
Stanley C. 2012. Monitoring for spotted wing drosophila in Utah. Fact Sheet ENT-161-12. Utah Plant Pest Diagnostic Laboratory and USU Extension.
Stanley C. 2011. Trapping and identifying spotted wing drosophila. Video Fact Sheet. Utah Plant Pest Diagnostic Laboratory and USU Extension.
Stockton, D., Brown, R., and Loeb, G. 2019. Not very hungry? Discovering the hidden food sources of a small fruit specialist, Drosophila suzukii. Ecological Entomology, DOI: 10.1111/een.12766.
Stockton, D., Wallingford, A., Rendon, D., Fanning, P., Green, C., Diepenbrock, L., Ballman, E., Walton, V., Isaacs, R., Leach, H., Drummond, F., Burrack, H, & Loeb, G. 2019. Interactions between biotic and abiotic factors affect survival in overwintering Drosophila suzukii (Matsumura). Environmental Entomology, doi: 10.1093/ee/nvy192.
Swett, C.L., Hamby, K.A., Hellman, E.M., Carignan, C., Bourret, T.B., and Koivunen, E.E. 2019. Characterizing members of the Cladosporium cladosporioides species complex as fruit rot pathogens of red raspberries in the Mid-Atlantic and co-occurrence with Drosophila suzukii (spotted wing drosophila). Phytoparasitica: 77: 415-428. DOI: 10.1007/s12600-019-00734-1
Tran, A.K., W.D. Hutchison & M.K. Asplen. 2020. Morphometric criteria to differentiate Drosophila suzukii (Diptera: Drosophilidae) seasonal morphs. PLoS ONE 15(2): e0228780. https://doi.org/10.1371/journal.pone.0228780