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New Phytophthora species recovered from oak
forest soils in eastern United States
Y. Balci1, S.Balci1, W. L. MacDonald1, K. W.
Gottschalk2
Corresponding address yibalci_at_mail.wvu.edu
1 West Virginia University, Division of Plant
Soil Sciences, 1090 South Agricultural Sciences,
WV 26506, 2USDA Forest Service, Northeastern
Research Station, 180 Canfield St., Morgantown WV
26505
INTRODUCTION
gure 1 Symptoms of infection by
alder Phytophthora on Alnus glutinosa and
A. incana A. and B. tarry exudation at the
collar region of a A. glutinosa tree in a
plantation (ca.10 years old) C. An old A. incana
tree along a stream showing flame shaped canker
development on inner bark
MATERIALS and METHODS
RESULTS and DISCUSSION
gure 1 Symptoms of infection by
alder Phytophthora on Alnus glutinosa and
A. incana A. and B. tarry exudation at the
collar region of a A. glutinosa tree in a
plantation (ca.10 years old) C. An old A. incana
tree along a stream showing flame shaped canker
development on inner bark
Phytophthora sp1
Phytophthora sp2
gure 1 Symptoms of infection
by alder Phytophthora on Alnus glutinosa and
A. incana A. and B. tarry exudation at the
collar region of a A. glutinosa tree in a
plantation (ca.10 years old) C. An old A. incana
tree along a stream showing flame shaped canker
development on inner bark
P. quercina 'like'
REFERENCES 1 Balci, Y. Halmschlager, E.,
2002 Incidence of Phytophthora species in oak
forests in Austria and their possible involvement
in oak decline. For. Path., 33, 157-174.
ACKNOWLEDGEMENTS Many thanks are due to Y. Pober
and D. S. Mittermayr for their excellent
assistance in laboratory work. We also kindly
acknowledge M. Brandstetter and P. Menschhorn for
their help in field sampling.