University of Maryland Extension

Vegetable Plant Diseases

Maryland and Delaware Vegetable Plant Pathology

Dr. Kathryne Everts
Professor & Extension Specialist
Vegetable Plant Pathology

Kate is in a new position: 

Director of Wye Research and Education Center and the Harry R. Hughes Center for Agroecology
Professor, Dept. Plant Science and Landscape Architecture

Her email is the same, but she can be reached a 410- 827-6202 or 410-827-8057.

My research program focuses on the management of vegetable diseases that are economically important in the mid-Atlantic region and supports my extension responsibilities in the states of Maryland and Delaware. The current pathosystems that we are studying include the soilborne diseases Fusarium wilt (Fusarium oxysporum f. sp. niveum on watermelon), and white mold (Sclerotinia sclerotiorum on Phaseolus lunatus); and the foliar diseases gummy stem blight (Didymella bryoniae on watermelon), and late blight (Phytophthora infestans on tomato).  By increasing our knowledge of the epidemiology of these diseases, we aim to reduce disease losses and improve the sustainability of management. 

The approach towards sustainable soilborne disease management focuses on practices such as cover cropping and biological soil amendments to reduce the conduciveness of the soil environment to disease development. For example we have examined the mechanisms of suppression resulting from incorporation of a green manure of Vicia villosa or Trifolium incarnatum on Fusarium wilt. Our approach for foliar disease management is the development or verification of disease forecasting systems such as MelCast for gummy stem blight and the Cornell DSS for late blight on tomato. Practices resulting from our research have improved management of vegetable diseases, decreased fungicide usage, and increased vegetable yields throughout the region.

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2021. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.