Diseases Diagnosed in April 2010

    Diseases Diagnosed in April 2010

    Common Name Scientific Name Host Category County
    abiotic na pomegranite fruit Washington
    gray snow mold; Typhula blight Typhula sp. turfgrass turf Salt Lake
    root rot Phytophthora sp. bigtooth maple ornamental Cache
    iron chlorosis na blue spruce ornamental Wasatch
    root and crown rot Rhizoctonia sp. Pansy ornamental Utah
    necrotic ring spot Ophiosphaerella korrae bluegrass turf turfgrass Salt Lake
    fire blight Erwinia amylovora flowering pear ornamental Salt Lake