Philip B. Hamm

Best Publications

• Microbial populations, fungal species diversity and plant pathogen levels in field plots of potato plants expressing the Bacillus thuringiensis var. tenebrionis endotoxin

  Katherine K. Donegan;Deborah L. Schaller;Jeffrey K. Stone;Lisa M. Ganio

  180
  Citations

• Implications of Sexual Reproduction for Phytophthora infestans in the United States: Generation of an Aggressive Lineage.

  P. D. Gavino;C. D. Smart;R. W. Sandrock;J. S. Miller

  177
  Citations

• Whole genome characterization of Potato virus Y isolates collected in the western USA and their comparison to isolates from Europe and Canada.

  J. H. Lorenzen;T. Meacham;P. H. Berger;P. J. Shiel

  160
  Citations

• The taxonomic structure of Phytophthora megasperma: evidence for emerging biological species groups.

  E.M. Hansen;C.M. Brasier;D.S. Shaw;P.B. Hamm

  133
  Citations

• Relative resistances of potato clones in response to new and old populations of Phytophthora infestans

  D.A. Inglis;D.A. Johnson;D.E. Legard;W.E. Fry

  129
  Citations

• Effects of Seedborne Potato Virus Y Infection in Two Potato Cultivars Expressing Mild Disease Symptoms.

  D. C. Hane;P. B. Hamm

  128
  Citations

• Soil microbial, fungal, and nematode responses to soil fumigation and cover crops under potato production

  H. P. Collins;A. Alva;R. A. Boydston;R. L. Cochran

  126
  Citations

• Aggressiveness of Isolates of Phytophthora infestans from the Columbia Basin of Washington and Oregon.

  Jeffrey S. Miller;Dennis A. Johnson;Philip B. Hamm

  121
  Citations

• Coat protein transgenic resistance to watermelon mosaic and zucchini yellows mosaic virus in squash and cantaloupe.

  G. H. Clough;P. B. Hamm

  118
  Citations

• First Report of Zebra Chip Disease and "Candidatus Liberibacter solanacearum" on Potatoes in Oregon and Washington State.

  J. M. Crosslin;P. B. Hamm;J. E. Eggers;Silvia I. Rondon

  117
  Citations

• Potato Late Blight in the Columbia Basin: An Economic Analysis of the 1995 Epidemic.

  D. A. Johnson;T. F. Cummings;P. B. Hamm;R. C. Rowe

  109
  Citations

• Identity of a Phytophthora species attacking raspberry in Europe and North America.

  W.F. Wilcox;P.H. Scott;P.B. Hamm;D.M. Kennedy

  108
  Citations

• Strain-Specific Resistance to Potato virus Y (PVY) in Potato and Its Effect on the Relative Abundance of PVY Strains in Commercial Potato Fields

  Cassandra N Funke;Olga V Nikolaeva;Kelsie J Green;Lisa T Tran

  99
  Citations

• Characterization of the Phytophthora infestans Population in the Columbia Basin of Oregon and Washington from 1992 to 1995.

  Jeffrey S. Miller;Philip B. Hamm;Dennis A. Johnson

  93
  Citations

• Monitoring nitrogen status of potatoes using small unmanned aerial vehicles

  E. Raymond Hunt;Donald A. Horneck;Charles B. Spinelli;Robert W. Turner

  88
  Citations

• Cultural characters, protein patterns and unusual mating behaviour of Phytophthora gonapodyides isolates from Britain and North America

  C.M. Brasier;P.B. Hamm;E.M. Hansen

  85
  Citations

• The Occurrence of PVYO, PVYN, and PVYN:O Strains of Potato virus Y in Certified Potato Seed Lot Trials in Washington and Oregon.

  J. M. Crosslin;P. B. Hamm;D. C. Hane;J. Jaeger

  83
  Citations

• Cost of Fungicides Used to Manage Potato Late Blight in the Columbia Basin: 1996 to 1998.

  Dennis A. Johnson;Thomas F. Cummings;Philip B. Hamm

  66
  Citations

• First Report of the Necrotic Strain of Potato virus Y (PVYN) on Potatoes in the Northwestern United States.

  J. M. Crosslin;P. B. Hamm;K. C. Eastwell;R. E. Thornton

  64
  Citations

• Benzimidazole resistance offusarium species recovered from potatoes with dry rot from storages located in the Columbia basin of oregon and Washington

  Cynthia M. Ocamb;Philip B. Hamm;Dennis A. Johnson

  60
  Citations

• Effects of soil fumigation and cover crops on potential pathogens, microbial activity, nitrogen availability, and seedling quality in conifer nurseries.

  E. M. Hansen;D. D. Myrold;P. B. Hamm

  58
  Citations

• Control of Meloidogyne chitwoodi in Potato with Fumigant and Nonfumigant Nematicides.

  R. E. Ingham;P. B. Hamm;R. E. Williams;W. H. Swanson

  54
  Citations

• Serological and molecular detection of tobacco veinal necrosis isolates of Potato virus Y (PVY N ) from potatoes grown in the Western United States

  J. M. Crosslin;P. B. Hamm;P. J. Shiel;D. C. Hane

  39
  Citations

• Association of beet leafhopper (Hemiptera: Cicadellidae) with a clover proliferation group phytoplasma in Columbia basin of Washington and Oregon.

  J. M. Crosslin;J. E. Munyaneza;A. Jensen;P. B. Hamm

  39
  Citations

• Phytophthora meadii may be a species hybrid

  Eva Sansome;C.M. Brasier;P.B. Hamm

  34
  Citations

• Soil Fumigant Effects on Three Genera of Potential Soilborne Pathogenic Fungi and Their Effect on Potato Yield in the Columbia Basin of Oregon

  Philip B Hamm;Russell E Ingham;Joy R Jaeger;William H Swanson

  33
  Citations