Sporax is inexpensive, effective, safe, and easy to apply. Tree fellers should treat at a rate of approximately 5 pounds per 60 sq. Sporax may aggravate the problem by preventing natural competitors from entering stumps if applied to stump surfaces in diseased plantations. In annosum root rot infected stands, it is recommended that stumps be treated with Phlebiopsis gigantea , an aggressive, highly competitive fungus that colonizes stumps to the exclusion of the annosum root rot fungus. Spore suspension should be prepared fresh daily.
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