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Abstract
Pythium root rot, caused by Pythium myriotylum (Ridings and Hartman, 1976), is a very damaging disease to caladium plants (Caladium x hortulanum). Use of disease-resistant cultivars has been an effective and economically viable strategy for integrated management of major diseases in numerous crops. This strategy could be used to control pythium root rot in caladium if resistant cultivars could be identified or developed. In an evaluation of 19 major commercial cultivars, 'Candidum', 'Candidum Jr.', 'Frieda Hemple', and 'White Christmas' were found to have a moderate level of resistance to Pythium. To find more resistant cultivars, twenty-three additional commercial cultivars were screened using the same Pythium isolates, inoculation and evaluation procedures as described earlier (Deng et al. 2004). This document is ENH1008, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date September 27, 2005.
References
Bell, M.L., G.J. Wilfret, and D.A. Devoll. 1998. Survey of caladium tuber producers for acreage of cultivars grown. Proc. Fla. State Hort. Soc. 111:32-34.
Deng, Z., B.K. Harbaugh, R.O. Kelly, T. Seijo and R.J. McGovern. 2004. Pythium root rot resistance in commercial caladium cultivars. HortScience 40:549-552. https://doi.org/10.21273/HORTSCI.40.3.549
Harbaugh, B.K., B.D. Miranda, and G.J. Wilfret. 2002. Florida Blizzard - A white fancy-leaved caladium for large pots or shady landscape. HortScience 37:844-846. https://doi.org/10.21273/HORTSCI.37.5.844
Ridings, W.H and R.D. Hartman. 1976. Pathogenicity of Pythium myriotylum and other species of Pythium to caladium derived from shoot-tip culture. Phytopathology 66:704-709. https://doi.org/10.1094/Phyto-66-704