Spotted Wing Drosophila in Eastern Washington, 2010 85 th Orchard Pest & Disease Management Conference Portland Hilton, Portland, OR 12-14 January, 2011 Elizabeth H. Beers, Doug Walsh, Tim Smith Tree Fruit Research & Extension Center 1100 N. Western Ave. Wenatchee, Washington
Bioclimatic model prediction for SWD Okanogan Chelan Douglas Lincoln Kittitas Grant Adams Yakima Klickitat Benton Franklin Walla Walla
and then came June 28 June, fieldman brings in a sample from an apple cider vinegar trap 4 male SWD confirmed
No. of SWD traps processed/week (Beers+Walsh traps, all baited with apple cider vinegar (ACV) 600 Traps/week 500 400 300 200 traps/week Walsh Beers 100 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec
SWD 2010 Trap Catch (Beers, Walsh traps) 50 100 40 % Positive Traps Avg SWD/trap/week 100/SWD/trap/week (n=12) 80 Avg. SWD/trap/week 30 20 60 40 % Positive Traps 10 20 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0
SWD Seasonal Trap totals white no catch blue 1 to 10 green 11-50 yellow 51-200 orange 200-500 red 500+
n samples total Strawberry 38 Raspberry/Blackberry Plum/Pluot Pear Peach/Nectarine Packinghouse Grape Cherry Blueberry Apricot Apple 1,015 46 15 444 26 1,554 3,016 513 209 65 Average SWD by Crop 0 5 10 15 20 Average SWD/trap (seasonal)
No. samples Total Yakima Wenatchee WallaWalla TriCities Tonasket Royal City Rattlesnake Quincy Prosser Othello Orondo Moses Lake Mattawa Chelan/Manson Brewster 14 254 5 1,160 62 82 57 483 2,417 35 1,487 24 643 99 119 Average SWD by Region 0 50 200 250 Average SWD/trap (seasonal)
SWD distribution I-90 north, south 16 14.7 Avg. SWD/trap/week 12 8 4 6.2 0 I-90 North I-90 South 2,274 samples 4,667 samples
South to North: OR, BC, WA 200 Avg. SWD/trap/week 150 100 50 Washington British Columbia Mid-Columbia 0 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan
Trap Types White sticky card Deli cup Nalgene Yogurt container Contech McPhail
Trap types 12 10 Deli Contech +38% SWD/trap/week 8 6 4 +41% +32% 2 0 Males Females Total
Deli v Contech 1,000 ml vol. 100 ml bait 200 ml vol. 40 ml bait
First catch: Deli vs Contech UFO3/4 UFO 7/8 UFO 5/6 UFO 17/18 UFO 15/16 UFO 11/12 UFO 1/2 NSA 7/8 NSA 5/6 NSA 3/4 NSA 1/2 NPLH CSI 9/10 CSI 11/12 Contech earlier Exp. 1025 Deli earlier Deli earlier = 3 Contech earlier = 5 No difference = 6 Total = 14 *Avg. diff= 0 weeks -8-6 -4-2 0 2 4 6 8 Weeks difference in 1st trap catch
Apple Cider Vinegar vs Super Bait 25 ACV vs SuperBait (max catch=444) ns SWD/trap/week 20 15 10 ACV SuperBait ns a Super Bait: Water (5.5 pt) Red wine (cheap) - 32 fl oz Apple cider vinegar -3 fl oz Molasses 6 fl oz Dishwashing liquid 1 tsp b 5 0 Males Females Total
Postharvest test on cherries 8 D. suzukii Drosophila spp. a Adult Drosophila/fruit 6 4 2 b a ab a a 0 Dimethoate 4 pt Provado 8 fl oz Check
Postharvest test on cherries 8 D. suzukii Drosophila spp. a Adult Drosophila/fruit 6 4 2 b a ab a a 0 Dimethoate 4 pt Provado 8 fl oz Check
A huge Thank You!! to the Fieldmen of Eastern Washington including, but not limited to: Wilbur-Ellis Northwest Wholesale Quincy Farm Chemicals Cascade Ag Distributing Northwest IPM Cascade IPM http://jenny.tfrec.wsu.edu/opm http://extension.wsu.edu/swd