Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension
www.extension.umn.edu
612-624-1222

Extension > Garden > Commercial fruit and vegetable production > Plant diseases > Fusarium wilt

Print Icon Email Icon Share Icon

Fusarium wilt

Anna Johnson, Michelle Grabowski and Angela Orshinsky

E. Sikora, Auburn University, Bugwood.org

Yellowing leaves due to Fusarium wilt

Pathogen

The fungus Fusarium oxysporum f. sp. lycopersici

Host range

Tomato, eggplant and pepper. Can also survive on weeds such as pigweed, mallow, and crabgrass.

Identification

Signs and symptoms

M. Grabowski, UMN Extension

Discolored veins due to Fusarium wilt

Environment

Biology and disease cycle

Management

Resistant varieties

There are many varieties with resistance to Fusarium wilt. Fusarium oxysporum f. sp. lycopersici has three races; race 1, race 2, and race 3. Some tomato varieties may be resistant to one race, yet completely susceptible to another. Most seed catalogues indicate resistance to Fusarium and which of the 3 races the variety is resistant to.

Varieties without resistance can be grafted onto disease resistant root stock.

The fungal pathogen may be present in resistant plants even if they do not show any symptoms. For this reason, planting resistant varieties should not be considered a rotation away from susceptible tomatoes.

M. Grabowski

Fusarium wilt in front group of heirloom tomatoes; resistant variety in back

Cultural control

Chemical control

There are currently no pesticides that provide control of Fusarium wilt.

2016

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy