How to Manage Pests

Pests in Gardens and Landscapes

Fusarium wilt—Fusarium oxysporum, f. sp. lycopersici

Plants infected with the Fusarium fungus turn yellow starting with one side or branch and gradually spreading through the plants, eventually killing them. Disease is caused by a fungus that infects tomatoes only. Disease is favored by warm soil.

Identification | Life cycle


Fusarium wilt of tomatoes can be avoided in many cases by planting resistant varieties which are indicated by the letters F or FF. If you wish to grow susceptible varieties, problems can sometimes be minimized by removing all residue, including roots, which may be susceptible, and using soil solarization before you plant.

Yellowing on leaf
Yellowing on leaf

Infected tissueInfected tissue

Statewide IPM Program, Agriculture and Natural Resources, University of California
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