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Evaluation of root diseases on the Ducharme logging unit, Flathead Indian Reservation Public Deposited
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A root disease evaluation was completed for the Ducharme logging unit near the southeast corner of Flathead Lake. Extensive root disease was found on Douglas-fir throughout the unit. The major pathogen on the site was Armillaria meilea. Black stain (Verticicladiella sp.) was isolated from one tree which was also infected with A. mellea. Bark beetles were not associated with mortality in the unit. Several management approaches to reduce disease losses are discussed.
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