Dieback, Host Plants, Ornamental Plants, Rhododendron, Phytophthora
During August 2003, we conducted a statewide survey of rhododendrons to determine if Phytophthora ramorum was present in Ohio ornamental nurseries. In total, 240 samples were randomly collected in 12 nurseries throughout Ohio from rhododendrons showing foliar necrotic lesions and twig dieback symptoms.
Testa, Antonino; Schilb, Mikael; Lehman, Jeffery S.; Cristinzio, Gennaro; and Bonello, Pierluigi, "First Report of Phytophthora Insolita and P. Inflata on Rhododendron in Ohio" (2005). Biology and Earth Science Faculty Scholarship. Paper 7.
Testa, A., Schilb, M, Lehman, J. S., Bonello, P., and Cristinzio, G. 2005. First report of Phytophthora insolita and P. inflata on rhododendron in Ohio. Plant Disease 89 (10): 1128.
Copyright 2005 APS Journals