1. USDA ARS Horticultural Crops Research Unit, 3420 NW Orchard Ave., Corvallis, Oregon 97330, U.S.A.
2. North Willamette Research and Extension Center, Oregon State University, 15210 NE Miley Rd., Aurora, Oregon 97002, U.S.A.
3. Oregon Department of Agriculture, Insect Pest Prevention & Management, 635 Capitol St. NE, Salem, Oregon 97301, U.S.A.