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    Florida 4-H Forest Ecology

    Florida 4-H Forest Ecology

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    • Powdery Mildew
    • Identifying Characteristics

    Powdery Mildew: Identifying Characteristics

    Identifying the injury: Distorted leaves, defoliation and sometimes reddening or chlorosis of affected leaves.
    Identifying the fungus: White mycelia and chains of spores on leaf surfaces. Sometimes black cleistothecia (sexual fruiting bodies) are seen among the white fungal material. Under the dissecting scope the ornamentation and appendages of cleistothecia can be beautiful and are useful in genus-level identification.
    Susceptible trees: Many hosts – commonly on laurel oaks, dogwood, maple, crape myrtle and sugarberry in Florida.

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    Florida 4-H Forest Ecology
    P.O. Box 110410 Gainesville, FL 32611-0410
    (352) 846-0547

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