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Phytophthora phaseoli (leaf blight of Phaseolus bean )
Phytophthora phaseoli
leaf blight of Phaseolus bean
Phytophthora infestans var. phaseoli
Africa: Congo, Asia: Philippines, Sri Lanka; Europe: Italy; North America: Mexico, Puerto Rico, USA.
KY, MN, OH, VT, VA
2025-09-09
fungus
-
Main: lima bean, Other: common bean
PHYTPH
Phytophthora phaseoli is a soilborne oomycete that infects primarily lima bean, causing root and stem rot under warm, wet conditions. It is not known to be seed transmitted and spreads mainly through infested soil or water, leading to stem lesions, root decay, wilting, and plant death.
1 Known Hosts
Phaseolus vulgaris
common bean
No
PHYTPH-2, PHYTPH-3, PHYTPH-4, PHYTPH-5, PHYTPH-7, CABI CPC, PHYTPH-8
Common bean is not an important host of the pathogen. Bean seed is not a known pathway.
2025-09-09 13:47:39
PHYTPH-2
Kunjeti, S. G., Evans, T. A. 2012, RNA-Seq reveals infection-related global gene changes in Phytophthora phaseoli, the causal agent of lima bean downy mildew. Molecular Plant Pathology 13:454-466
PHYTPH-3
T. A. Evans, C. R. Davidson, 2002. Two New Races of Phytophthora phaseoli from Lima Bean in Delaware, Plant Disease 86:813
PHYTPH-4
C. R. Davidson, T. A. Evans, 2008. Lima Bean Downy Mildew Epiphytotics Caused by New Physiological Races of Phytophthora phaseoli. Plant Disease 92: 670-674
PHYTPH-5
Erwin, D.C., and Ribeiro, O.K. 1996. Phytophthora Diseases Worldwide. APS Press, St. Paul, MN
PHYTPH-7
Evans, Thomas A., et al. 2007. Lima bean downy mildew: impact, etiology, and management strategies for Delaware and the Mid-Atlantic Region, US. Plant disease 91:128-135.
CABI CPC
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
PHYTPH-8
Santamaria, L., Ernest, E. G., Gregory, N. F., & Evans, T. A. (2018). Inheritance of resistance in lima bean to Phytophthora phaseoli, the causal agent of downy mildew of lima bean. HortScience, 53(6), 777-781.
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