Verticillium Wilt
Plants Affected
Maples, redbud (Cercis), ash, euonymus, tomatoes, strawberries.
Symptoms/Damage
A common symptom is wilting or death of one side of the plant. Leaves turn yellow or brown, then die followed by the death of entire branches, and the whole tree.
Stem
Infected sapwood may have dark greenish streaks in the sapwood and growth rings. This discoloration may be absent during the earliest stages of infection
Life Cycle
Verticillium is a widespread and very destructive soil-borne disease of maples and other plants. The fungus invades thru the roots and plugs up the water conducting vessels in the roots and stems of the plant. The fungus can survive in the soil as resting structures for years.
Management
Cultural
Plant resistant species back in the area where a plant has died due to Verticillium. All conifers are resistant.
Prune off and destroy affected limbs
Lightly fertilize to stimulate new growth and the plant’s defense system. Some mature trees can be kept alive for many years despite having the disease.
Chemical
None
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