Creator
- Oregon State University. Extension Service80
- Oregon State University. Agricultural Experiment Station69
- Oregon State University65
- Pscheidt, Jay W.51
- Westigard, Peter H.30
- Oregon State College. Federal Cooperative Extension Service29
- Southern Oregon Agricultural Experiment Station29
- Peachey, Ronald Edward26
- Olsen, Jeff L.21
- Peachey, Ed20
- Western Orchard Pest And Disease Management Conference20
- Castagnoli, S.18
- Oregon Agricultural College. Experiment Station18
- Wiman, Nik G.18
- Olson, Daniel J.16
- Et Al.15
- Oregon Agricultural College. Extension Service15
- Oregon Agricultural Experiment Station15
- Oregon State College. Agricultural Experiment Station15
- United States. Agency For International Development14