Environmentally Sound Prune Systems: Late Fall Prune Aphid Sampling Carolyn Pickel, Bill Olsen, Bill Krueger and Rick Buchner. 1997.
Environmentally Sound Prune Systems: Efficacy of Oil and Other ?soft? Materials Sprays Applied at Different Rates for In-Season Control of Mealy Plum Aphid in Prune Orchards Bill Olson, Carolyn Pickel and Nadeem Shawareb. 1997.
Environmentally Sound Prune Systems: Fertilizer Recommendations Based on Soil Tissue and Water Analysis Bill Olson and Nadeem Shawareb. 1997.
Environmentally Sound Prune Systems: Beneficial and Phytophagous Insect Monitoring Bill Olson, Nadeem Shawareb and Carolyn Pickel. 1997.
Environmentally Sound Prune Systems: Ground Mealy Bug Control Investigations Including Non-Chemical Control Strategies Bill Olson, Nadeem Shawareb and Clyde Elmore. 1997.
Environmentally Sound Prune Systems: Potential for Cover Crops and Mulches to Provide Weed Control, Beneficial Insects habitat and Improved Water Penetration Bill Olson, Carolyn Pickel, Larry Godfrey and Nadeem Shawareb. 1997.
Environmentally Sound Prune Systems: Prune Rust Mite Monitoring and Treatment Timing Bill Olson and Nadeem Shawareb. 1997.
Environmentally Sound Prune Systems: Predaceous Mite Release & Monitoring Bill Olson, Nadeem Shawareb, and Carolyn Pickel. 1997.
Environmentally Sound Prune Systems (ESPS) 97 CPB 7 Combined Report for 1997 (also see: individual reports with authorship) Olson, Bill, et. al. 1997.