Project Number: 500-42-001-33
Project Type: Grant

Start Date: Mar 20, 2002
End Date: Mar 19, 2004

Objective:
Compare mefanoxam application methods to determine the likelihood of insensitivity development in a P. erythroseptica population. Compare the pathogenic aggressiveness and fitness of mefanoxam-insensitive and mefanoxam-sensitive isolates of P. erythrospetica. Determine the fitness of mefanoxam-insensitive isolates of P. erythroseptica, relative to mefanoxam-sensitive isolates.

Approach:
Replicated plots will be established in a commercial potato field with a past history of pink rot. Prior to mefanoxam applications, soil samples will be collected from each plot. Soil will be collected after the bedding operation. Soil cores will be placed in hollowed-out potato tubers. Mefanoxam applications will be made at labeled rates for various treatments. At harvest, soil samples will be collected again. Isolate will be established as described and tested for sensitivity to mefanoxam.

Project Team

Bennett, A. Rick Jeff Miller - Assistant Professor 301-504-6915

Related National Programs

Plant Diseases (303)   Crop Protection & Quarantine (304)