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Plant Pathology

  • Determining the susceptibility of apple cultivars and rootstocks to fire blight, a major bacterial disease.
  • Evaluating efficacy and usefulness of bacterial antagonist, systemic-resistant action (SRA) compounds and improved formulations of copper compounds for management of fire blight in apple and pear orchards.
  • Evaluating mode of action and residual efficacy of new fungicides for control of major apple, pear, and stone fruit diseases.
  • Determining the most feasible disease management strategies for tree fruit, including disease-prediction models and precision in application timing.
  • Refinements in expert systems orchard management programs to improve diagnosis and management of tree fruit pests and diseases. Investigations to evaluate the potential of developing transgenic Prunus rootstocks with resistance to the tomato ringspot virus will be conducted.