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Portland Trees

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phone: (503) 823-TREE (8733)

email: trees@portlandoregon.gov

1900 SW 4th Avenue, Portland, OR 97201

Verticillium Wilt

Description

Susceptible species

Treatment

Additional information


Description

Verticilium wilt is caused by a soil-dwelling fungus that can cause water-transporting cells in the infected tree to shut down. This causes leaves to brown and die. Verticillium wilt usually only appears in damaged or otherwise stressed trees.

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Susceptible species

Certain species of maple, ash, dogwood and linden trees to various degrees

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Treatment

Plant verticillium-resistant species and keep nitrogenous fertilizers to a minimum.

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Additional information