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    Author(s): R. Lewis
    Date: 1987
    Source: Res. Note SO-335. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.
    Publication Series: Research Note (RN)
    Station: Southern Forest Experiment Station
    PDF: View PDF  (59 KB)

    Description

    Ceratocystis fagacearum colonized Texas live oaks (Quercus virginiana var. fusiformis) to a depth of 10 annual increments in sapwood, either before or shortly after initial symptom expression. The fungus survived in dead wood up to 12 months after oak wilt caused crown mortality. Both moist wood at the root collar level and dry wood at the d.b.h. level support C. fagacearum survival. The fungus was isolated from dead wood in March, June, September, and October in 2.5 percent of the 3,600 isolation samples used in the study.

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    Citation

    Lewis, R., Jr. 1987. Ceratocystis fagacearum in Living and Dead Texas Live Oaks. Res. Note SO-335. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.

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