How to Manage Pests

Pests in Gardens and Landscapes

Verticillium wilt—Verticillium spp.

Verticillium wilt becomes evident when lower leaves turn yellow and wither. Symptoms progress upward until twigs and branches wilt and die. Leaves may drop, causing trees to appear bare. Vascular tissue of twigs and branches becomes a light brown. Fruit may be small.

Solutions

Verticillium wilt is caused by a soilborne fungus. Avoid planting where susceptible crops, such as tomatoes, potatoes, peppers, eggplant, or cucurbits, have been before. Follow good sanitation and cultural practices to minimize problems. Prune out dead branches and destroy. Avoid excess pruning and the use of excess water or fertilizers, which may promote extra growth, making the plant more susceptible to disease.

Collapse of peach shoot tips
Collapse of peach shoot tips

Discoloration of plum vascular tissue
Discoloration of plum vascular tissue


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

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