Browsing ER Series - Extension Reports by Author "Zollinger, R. K."
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1998 Dry Bean Grower Survey of Pest Problems and Pesticide Use in Minnesota and North Dakota
Lamey, H. A.; Zollinger, R. K.; McMullen, M. P.; Lamey, H. A.; Zollinger, R. K.; McMullen, M. P. (North Dakota State University, 1998) -
Survey of Weeds in North Dakota - 2000
Zollinger, R. K.; Ries, J. L.; Hammond, J. J.; Zollinger, R. K.; Ries, J. L.; Hammond, J. J. (North Dakota State University, 2003)