How to Manage Pests
UC Pest Management Guidelines
Water Mold (Fruit Rot)
Pathogens: Pythium ultimum and other species
In this Guideline:
Water-soaked lesions develop on ripe fruit in contact with wet soil.
Within several days, the entire infected fruit turns into a water bag.
Avoid late-season irrigation, especially when threat of rainfall
increases. Avoid wetting the top of beds when fruit is ripening. Shorter furrow
irrigation runs and higher beds may lessen risk.
UC IPM Pest Management Guidelines: Tomato
UC ANR Publication 3470
R. M. Davis, Plant Pathology, UC Davis
G. Miyao, UC Cooperative Extension, Solano/Yolo counties
K. Subbarao, USDA Agricultural Research Station, Salinas
J. J. Stapleton, UC IPM Program, Kearney Agricultural Center, Parlier
Acknowledgments for contributions to the disease section:
B. W. Falk, Plant Pathology, UC Davis