1990 Comparison of Efficiency of Potassium Application Methods to Walnuts Including Injection and Distribution Through Sprinklers Olson, Bill, K. Uriu, J. Pearson. 1990.
1990 Determinations if a Rootstock More Tolerant of Nematodes, a Winter Cover Crop, or a Standard Chemical Treatment will improve Tree Growth and Production in English Walnuts and Control Root Lesion Nematode Pratylenchus Vulnus Olson, Bill, Becky Westerdahl. 1990.
1990 Evaluation of Agrobacterium Radiobacter - K84 and Bleach Against Two Strains of Agrobacterium Tumefaciens (Crown Gall) on Walnuts Olson, Bill, Milt Schroth, Bill Stuke. 1990.
1989 Comparison of Efficiency of Potassium Application Methods to Walnuts Including Injection and Distribution Through Sprinklers Olson, Bill, K. Uriu, J. Pearson. 1989.
1989 Tree Growth and Yield Response from Nematode Control Treatments Olson, Bill, Becky Westerdahl. 1989.
1989 Walnut Blight Control - Material Efficacy Screening Air Blast Sprayer and Hand - Gun Trial Olson, Bill, Milt Schroth. 1989.
