Extension Specialists
Dr. Kathleen M. Williams Extension Horticulturist-Production WSU Tree Fruit Research and Extension Center 1100 N. Western Avenue Wenatchee, WA 98801 509-663-8181, ext. 237 fax: 509-662-8714 Orchard management; evaporative cooling; nursery stock; chemical thinning; pear production williams@wsu.edu	Dr. Eugene M. Kupferman Extension Horticulturist-Postharvest WSU Tree Fruit Research and Extension Center 1100 N. Western Avenue Wenatchee, WA 98801 509-663-8181, ext. 239 fax: 509-662-8714 Postharvest handling of tree fruit crops; fruit quality kupfer@wsu.edu
Extension Agents
Benton-Franklin Jack Watson 1121 Dudley Avenue Prosser, WA 99350-9687 509-786-5609 fax: 509-786-5525 Grape, apple, sweet cherry production watson@coopext.cahe.wsu.edu	Yakima Dr. Dana Faubion 128 N. 2nd Street, Rm. 233 Yakima, WA 98901 509-574-1600 fax: 509-574-1601 General Orchard Management faubiond@wsu.edu
Spokane Tonie Fitzgerald N. 222 Havana Spokane, WA 99202 509-533-2048 fax: 509-533-2087 General orchard management tjfitz@wsu.edu	Grant-Adams Karen Maib 9795A Road H, S.E. Othello, WA 99344 509-346-1377 fax: 509-346-1323 Orchard management, labor maib@wsu.edu
Chelan-Douglas-Okanogan Timothy J. Smith 400 Washington Street Wenatchee, WA 98801 509-664-5540 fax: 509-664-5561 Weed control; pest management; irrigation and tree nutrition smithtj@wsu.edu	Dr. Guy Witney 400 Washington Street Wenatchee, WA 98801 509-664-5540 fax: 509-664-5561 General orchard management, winter hardiness, irrigation, nutrition gwitney@wsu.edu
Skagit Dyvon Havens 306 S. First Street Mt. Vernon, WA 98273-3805 360-428-4270 fax: 360-428-4263 General orchard management dyvonh@co.skagit.wa.us	Whatcom Craig MacConnell 1000 N. Forest Street, Courthouse Annex Bellingham, WA 98225 360-676-6736 fax: 360-738-2458 General orchard management cbmac@wsu.edu
Research
Department of Hort. and L.A. WSU - Pullman 99164-6414 fax: 509-335-8690 Dr. Bill Hendrix, Interim Chair 509-335-9502 hendrix@wsu.edu	Dr. Fenton E. Larsen Tree fruits, nursery, propagation, rootstocks 509-335-3455 flarsen@wsu.edu
Dr. Preston Andrews Physiology - crop management 509-335-3603 andrewsp@wsu.edu	Dr. M. Ahmedullah Physiology - grapes 509-335-3440 ahmed@wsunix.wsu.edu
Dr. Joe Poovaiah Physiology - calcium metabolism and growth regulators 509-335-2487 poovaiah@wsu.edu	Dr. Alex Ogg - USDA Weed control, weed biology 509-335-1551 sdriessen@wsu.edu
Dr. John Fellman Postharvest physiology of fruits and vegetables 509-335-3454 fellman@wsu.edu
Irrigated Agriculture Research and Extension Center 24106 N. Bunn Road Prosser, WA 99350-9687 509-786-2226 fax: 509-786-9370
Dr. Art Linton 509-786-9226 Superintendent Animal science aLinton@beta.tricity.wsu.edu	Dr. Mary J. Hattendorf 509-786-9219 AG Meteorologist, PAWS System Coordinator mhattend@tricity.wsu.edu
Dr. Greg Lang 509-786-9261 Stone fruit physiology glang@beta.tricity.wsu.edu	Dr. Robert Wample 509-786-9263 Physiology - grapes wample@beta.tricity.wsu.edu
Tree Fruit Research and Extension Center 1100 N. Western Avenue Wenatchee, WA 98801 509-663-8181 fax: 509-662-8714
Dr. Don Elfving, Superintendent, ext. 252 Tree physiology; pruning and training; plant growth regulators delfving@wsu.edu	Dr. Bruce H. Barritt, ext. 233 High density orchard management, orchard systems, rootstocks, tree fruit breeding etaplz@wsu.edu
Dr. Frank Peryea, ext. 232 Soils, plant nutrition, environ. geochem. FJPeryea@wsu.edu	Dr. Larry Schrader, ext. 265 Physiology - nitrogen metabolism, sunburn, summer oil schrader@wsu.edu
Dr. Kathleen Williams, ext. 237 Nursery stock quality; evaporative cooling; pear production, chemical thinning williams@wsu.edu
USDA - ARS 1104 N. Western Avenue Wenatchee, WA 98801 509-664-2280 fax: 509-664-2287
Dr. Larry Pusey, Research Leader Fire blight ecology/control pusey@tfrl.ars.usda.gov	Dr. Eric Curry Postharvest physiology curry@tfrl.ars.usda.gov
Dr. Steve Drake Postharvest handling; storage drake@tfrl.ars.usda.gov	Dr. Jim Mattheis Postharvest physiology mattheis@tfrl.ars.usda.gov
Dr. Rodney Roberts Pre- and postharvest physiology, quarantine issues roberts@tfrl.ars.usda.gov
Northwestern Washington Research and Extension Unit 1468 Memorial Highway Mt. Vernon, WA 98273 360-424-6121 fax: 360-428-1331
Dr. W. C. Anderson, Station Manager andersonw@wsu.edu	Gary Moulton, Research Tech. Apple variety evaluation, western Washington apple production gamoulton@wsu.edu

Washington State University
Tree Fruit Research and Extension Center
1100 N. Western Ave.
Wenatchee WA 98801

phone: 509-663-8181
fax: 509-662-8714

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