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    Florida 4-H Forest Ecology

    Florida 4-H Forest Ecology

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    • Bacterial Leaf Scorch
    • Identifying Characteristics

    Bacterial Leaf Scorch: Identifying Characteristics

    Identifying the injury: Foliage with marginal chlorosis, followed by necrosis. The necrosis is usually closer to the leaf margins. Leaves turn completely brown. Stunting, dieback and sometimes tree death.
    Identifying the pathogen: X. fastidiosa is a microscopic rod-shaped bacterium that is not easily cultured on artificial media.
    Susceptible trees: Wide host range including: oaks (especially laurel and turkey oak), sycamore, sweetgum and elms.

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

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