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Title: Association of Phytophthora cinnamomi with white oak decline in southern Ohio
Author: Nagle, Annemarie M.; Long, Robert P.; Madden, Laurence V.; Bonello, Pierluigi.;
Source: Plant Disease. 94(8): 1026-1034.
Publication Series: Scientific Journal (JRNL)
Description: A decline syndrome and widespread mortality of mature white oak tree (Quercus alba) associated with wet and low-lying areas has been recently observed in southern Ohio forests. Previous studies have isolated Phytophthora cinnamomi from white oak rhizospheres. In 2008 and 2009, P. cinnamomi population densities in two healthy and two declining white oak stands at Scioto Trail State Forest were quantified and potential roles of three environmental drivers of Phytophthora spp.-induced decline were assessed: soil texture, soil moisture, and topography. Significantly higher P. cinnamomi propagule densities were found in declining stands in both years but propagule densities were not associated with soil moisture content. Trends in population densities were not correlated with soil moisture or topographic position within field sites.
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Nagle, Annemarie M.; Long, Robert P.; Madden, Laurence V.; Bonello, Pierluigi. 2010. Association of Phytophthora cinnamomi with white oak decline in southern Ohio. Plant Disease. 94(8): 1026-1034.
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