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Sporulation by Peniophora gigantea with Reference to Control of Annosus Root Rot

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Sporophores of Peniophora gigantea appeared first in autumn on inoculated pine stumps after winter and spring thinning in two stands near Athens, Georgia. Thereafter, some were present throughout one year, even in summer. Sporophores developed within a few months on slash from thinning, prior to occurrence on stumps. Regular petri dish exposures in one stand showed that basidiospores were dispersed during each season of the year. Deposition rates were as high as 126 spores/100 cm²/hr with 1-20 spores common. Low rates of up to 7 spores/100 cm²/hr were recorded for Fomes annosus. Basidiocarps of P. qigantea formed on pine branch and stem sections at constant temperatures up to 75°F in laboratory tests. It is suggested that inoculum of P. gigantea can be increased, to afford protection against stump invasion by F. annosus, by cutting scattered trees several months before a regular thinning.

Document Type: Journal Article

Affiliations: Professor in the Department of Plant Pathology and Plant Genetics, University of Georgia and pathologist in the Georgia Agricultural Experiment Stations, Athens

Publication date: March 1, 1966

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  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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