Utah Plant Pest Diagnostic Lab

Diseases Diagnosed in September 2010

Common Name Scientific Name Host County
flax rust Melampsora sp. flax Grand
root and crown rot Rhizoctonia sp. creeping thyme Cache
wilt Macrophomina sp. tomato Cache
bacterial wetwood undeterminted cottonless cottonwood Kane
cytospora canker Cytospora sp. cottonless cottonwood Kane
powdery mildew undetermined columbine Wasatch
iron chlorosis abiotic maple Davis
anthracnose Kabatiella apocrypta maple Davis
venturia blight Venturia macularis aspen Davis
Botryosphaeria Botryosphaeria sp. blue spruce Wasatch