Below are the latest findings from the Diagnostic Lab as of March 25th:
Greenhouse samples have included Botrytis blight on New Guinea impatiens; nutritional problems from high soil pH on bean and tomato seedlings, as well as phosphorus deficiency, Pythium root rot, and tomato spotted wilt virus on tomato.
Landscape and turf samples have included Dothistroma needle blight on Austrian pine; Rhizosphaera needlecast on spruce; winter desiccation on euonymus and holly; and snow mold (Coprinus sp.) on bentgrass.
by Julie Beale and Brenda Kennedy, Plant Disease Diagnosticians