Plant Disease Clinic Highlights

The following list highlights some of the commonly diagnosed diseases during May.

Disease                           Host

peach leaf curl                   peach
Rhizosphaera needle cast          spruce
anthracnose                       maple, ash, sycamore
cedar-apple rust                  cedar, juniper
slime molds                       turf
scab                              crabapple
Coniothyrium leaf spot            maple

Other diseases diagnosed:
anthracnose                       turf
angular leaf spot                 strawberry
Mycoshpaerella leaf spot          strawberry
Rhizoctonia root rot              strawberry
leather rot                       strawberry
Didymellina leaf spot             iris
Diplodia canker                   concolor fir
blossom end rot                   tomato
Alternaria leaf spot              Rhubarb
anthracnose                       peony
fungal cankers                    blueberry, poplar

This article originally appeared in the June 5, 1991 issue, p. 98.

Prepared by Paula Flynn, Department of Plant Pathology
Iowa State University, Ames, Iowa.
This information subject to a usage policy.

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Last updated 8/13/97 by John VanDyk
http://www.ipm.iastate.edu/ipm/hortnews/1991/6-5-1991/high.html