Figure 1: a) Symptoms of snow scald – straw-colored leaves, white, fluffy mycelia. b) Classic egg-shaped sclerotia of snow scald fungus. c) The sclerotia can sometimes envelope leaf tissue in a more irregular shape. nicate the results of this study with MN superintendents soon.
recurring leaf spot disease issue and would like to participate either with management trials or with helpLeaf Spot ing us to collect isolates from your course, please contact us as soon as The most common disease that possible! For more information on we see at the UMN plant disease leaf spot identification and manageclinic is leaf spot. Of course, leaf ment, I recommend the leaf spot spots are not all the same – they are article in the July 2015 issue of Hole caused by several different pathoNotes. gens that tend to occur at different times during the season. The priBacterial Etiolation and Decline mary pathogens that I see are Dreschlera spp., Bipolaris sorokiniana, Less commonly found in Minand Leptosphaerulina spp. Due to nesota, this year we received a samthe high proportion of leaf spot dis- ple of etiolated turfgrass. We coneases being turned in, we will be firmed the presence of Acidovorax starting to research these leaf spot avenae pv. avenae using bacterial diseases this summer. If you have a isolation and DNA techniques. Page 51