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Why does landscape matter?

Landscape Effects on Spotted Wing Drosophila Infestation in Raspberries Emma Pelton MSc. Candidate Agroecology & Entomology University of Wisconsin—Madison. Why does landscape matter?. Why does landscape matter?. Why does landscape matter?. Why does landscape matter?.

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Why does landscape matter?

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  1. Landscape Effects on Spotted Wing Drosophila Infestation in RaspberriesEmma PeltonMSc. Candidate Agroecology & EntomologyUniversity of Wisconsin—Madison

  2. Why does landscape matter?

  3. Why does landscape matter?

  4. Why does landscape matter?

  5. Why does landscape matter? Wooded landscapes may provide: • Overwintering habitat • Alternate host plants

  6. Woodland Alternate Hosts • Snowberry • Elderberry • Pokeweed • Honeysuckle • Dogwood • Brambles • Bittersweet nightshade • Others (still to be confirmed)

  7. Do farms in heavily wooded landscapes experience earlier infestationandhigher infestation?

  8. Study Farms

  9. Selecting Study Farms • Low-to-high woodland landscapes • Pest management strategies • Varieties (summer and fall-bearing raspberries) • Size (<0.25 – 20 acres)

  10. Identifying Alternate Hosts • 100m transect along woodland edge • Presence/ absence of alternate hosts

  11. Monitoring with Yeast-Sugar Traps

  12. Weekly collection June-Nov

  13. The Math 18 farms

  14. The Math 18 farms X 9 traps

  15. The Math 18 farms X 9 traps X 20 weeks

  16. The Math 18 farms X 9 traps X 20 weeks A lot of samples

  17. Preliminary Results

  18. Do farms in heavily wooded landscapes experience earlier infestation and higher infestation?

  19. Earlier Infestation

  20. June 24th

  21. July 1st

  22. July 8th

  23. July 15th

  24. Higher Infestation Photo: Hannah Burrack

  25. Larval Infestation Salt Tests Purpose: Establish trap catch and larval infestation correlation Methods: Collected100g of ripe, marketable fruit Salt-water test Counted all 1-3rd instar larvae Photo: Phil Pellitteri

  26. Next Steps • Completing samples • Analyzing data for landscape factors: farm vs. large-scale, woodland area vs. edge • Other factors: Management, Degree Days

  27. Summer 2014 Repeat study: • 5 Wisconsin farms • 5 Minnesota farms • 5 Michigan farms

  28. Summer 2014 Cold-Hardy Grape Variety Experiments: • SWD choice and preference tests • SWD field monitoring (sign up!)

  29. With the help of… Participating Growers and the Wisconsin Berry Growers Association Advisors: Dr. Claudio Gratton& Dr. Christelle Guédot Technicians: Caitlin Bergstrom, Tressa Franzmeier, Kiley Friedrich, Ian McCririe, and Aila Murphy Michael Stocking, Friends, and Family Labmates in the Gratton and Guédot labs Funding: • USDA North Central Region— Regional Integrated Pest Management Program: Research & Extension Grant • Center for Integrated Agricultural Systems Mini-Grant

  30. Stay Tuned… Updates through: • WBGA • Contact me: Emma Pelton pelton@wisc.edu • UW SWD website http://labs.russell.wisc.edu/swd/

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