Whole genome characterization of Potato virus Y isolates collected in the western USA and their comparison to isolates from Europe and Canada von LORENZEN, J. H, MEACHAM, T, BERGER, P. H, SHIEL, P. J, CROSSLIN, J. M, HAMM, P. B, KOPP, H

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Soil microbial, fungal, and nematode responses to soil fumigation and cover crops under potato production von Collins, H.P, Alva, A, Boydston, R.A, Cochran, R.L, Hamm, P.B, McGuire, A, Riga, E

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The occurrence of PVYO, PVYN, and PVYN:O strains of Potato virus Y in certified potato seed lot trials in Washington and oregon von CROSSLIN, J. M, HAMM, P. B, HANE, D. C, JAEGER, J, BROWN, C. R, SHIEL, P. J, BERGER, P. H, THORNTON, R. E

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Spatial and Temporal Dynamics of Potato Tuberworm (Lepidoptera: Gelechiidae) in the Columbia Basin of the Pacific Northwest von Debano, S. J, Hamm, P. B, Jensen, A, Rondon, S. I, Landolt, P. J

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Detection, Quantification, and Vegetative Compatibility of Verticillium dahliae in Potato and Mint Production Soils in the Columbia Basin of Oregon and Washington von Omer, M.A, Johnson, D.A, Douhan, L.I, Hamm, P.B, Rowe, R.C

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Population Dynamics of the Beet Leafhopper in Northeastern Oregon and Incidence of the Beet Leafhopper-Transmitted Virescence Agent Phytoplasma von Crosslin, J. M., Rondon, S. I., Hamm, P. B.

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Reducing Tuber Damage by Potato Tuberworm (Lepidoptera: Gelechiidae) with Cultural Practices and Insecticides von Clough, G. H., Rondon, S. I., DeBano, S. J., David, N., Hamm, P. B.

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Association of Beet Leafhopper (Hemiptera: Cicadellidae) with a Clover Proliferation Group Phytoplasma in Columbia Basin of Washington and Oregon von Crosslin, J. M., Munyaneza, J. E., Jensen, A., Hamm, P. B.

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First Report of Zebra Chip Disease and "Candidatus Liberibacter solanacearum" on Potatoes in Oregon and Washington State von Crosslin, J M, Hamm, P B, Eggers, J E, Rondon, S I, Sengoda, V G, Munyaneza, J E

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Effects of seedborne potato virus Y infection in two potato cultivars expressing mild disease symptoms von Hane, D.C, Hamm, P.B

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Implications of sexual reproduction for Phytophthora infestans in the United States : Generation of an aggressive lineage von GAVINO, P. D, SMART, C. D, SANDROCK, R. W, MILLER, J. S, HAMM, P. B, LEE, T. Y, DAVIS, R. M, FRY, W. E

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First Report of Natural Infection by 'Candidatus Liberibacter solanacearum' in Bittersweet Nightshade (Solanum dulcamara) in the Columbia Basin of Eastern Oregon von Murphy, A F, Cating, R A, Goyer, A, Hamm, P B, Rondon, S I

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Potato Cultivars Differ in Current Season Potato Virus Y (PVY) Infection von Hamm, P.B, Hane, D.C, Pavek, M.J, Leroux, L.D, Gieck, S.L, David, N.L

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Serological and molecular detection of tobacco veinal necrosis isolates of Potato virus y (PVYn) from potatoes grown in the Western United States von CROSSLIN, J. M, HAMM, P. B, SHIEL, P. J, HANE, D. C, BROWN, C. R, BERGER, P. H

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First Report of Ustilago cynodontis Causing Smut of Cynodon dactylon in Washington State, United States von Dung, J K S, Carris, L M, Hamm, P B

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First Report of Stunting and Root Rot of Potato Associated with Pratylenchus penetrans in the Columbia Basin of Washington von Ingham, R.E, Hamm, P.B, Riga, E, Merrifield, K.J

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Aggressiveness of isolates of Phytophthora infestans from the Columbia Basin of Washington and Oregon von Miller, J.S. (Washington State University, Pullman.), Johnson, D.A, Hamm, P.B

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Characterization of the Phytophthora infestans population in the Columbia Basin of Oregon and Washington from 1992 to 1995 von MILLER, J. S, HAMM, P. B, JOHNSON, D. A

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Effects of seedborne potato leafroll virus on russet Norkotah potato von HAMM, P. B, HANE, D. C

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Cost of fungicides used to manage potato late blight in the Columbia basin : 1996 to 1998 von JOHNSON, D. A, CUMMINGS, T. F, HAMM, P. B

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