Philip B. Hamm

Philip B. Hamm publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Philip B. Hamm sits on this spectrum.

Philip B. Hamm D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Philip B. Hamm sits on this spectrum.

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