1994 Will Launching a Winter Cover Crop, or a Standard Chemical Treatment Will Improve Tree Growth and Production in English Walnuts and/or Control Root Lesion Nematode (Pratylenchus Vulnus) Olson, Bill, Becky Westerdahl. 1994.
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.
1989 Tree Growth and Yield Response from Nematode Control Treatments Olson, Bill, Becky Westerdahl. 1989.
1991 Determination if a Rootstock More Tolerant of Nematodes, A Winter Cover Crop, or a Standard Chemical Treatment Will Improve Tree Growth and Protection in English Walnuts and Control Root Lesion Nematode (Pratylenchus Vulnus) Olson, Bill, Becky Westerdahl, Delbert Siemson, Mike Howard, Bill Stuke. 1991.
2003 Nematode Management in Walnut Orchards - 2003 Westerdahl, Becky B., Janine Hasey, Bruce Lampinen 2003.
2002 Long-Term Performance of Own Rooted 'Cbandler' Walnut Compared to 'Chandler' Walnut on Paradox Rootstock Hasey, Janine, B. B. Westerdahl, B. D. Lampinen 2002.
2006 Nematode Management in Walnut Orchards - 2006 Westerdahl, Becky B., Janine Hasey, Joe Grant, Bruce Lampinen 2006.
2005 Nematode Management in Walnut Orchards - 2005 Westerdahl, Becky B., Janine Hasey, Joe Grant, Bruce Lampinen 2005.
2004 Nematode Management in Walnut Orchards - 2004 Westerdahl, Becky B., Janine Hasey, Joe Grant, Bruce Lampinen 2004.
2001 Yield Performance of Own Rooted Chandler vs Chandler on Paradox Rootstock Hasey, Janine, Becky Westerdahl, Bruce Lampinen, Jim Yeager, Joe Conant 2001.
