WebMar 22, 2024 · Abstract Halo blight, caused by Diaporthe humulicola, is an emerging issue in hop production in the Upper Midwestern and Eastern North America. Reports of halo blight thus far have included Connecticut, Michigan, New York, and Quebec (Allan-Perkins et al.; Hatlen et al. 2024; Higgins et al. 2024; Sharma et al. 2024). WebDiaporthe × humulicola Hop Humulus lupulus Large, necrotic patches with a chlorotic halo on leaves Absent from the EU Not listed New finding Didymella × rhei Rhubarb Rheum spp. On leaves: initially light brown, circular lesions with red margins, later irregular spots Absent from the EU Not listed First finding Epicoccum × sorghinum Sugarcane ...
Timothy David Miles - College of Agriculture & Natural …
WebFirst report of halo blight of hop ( Humulus lupulus) caused by Diaporthe humulicola in Quebec, Canada. Plant Dis. (in First Look). Tsuchida, C. T., Mauzey, S. J., Hatlen, R.,Miles, T.D., Koike, S.T. 2024. First Report of Pythium Root Rot caused by Pythium mastophorum on Parsley in the United States. Plant Dis. 102: 1671. WebApr 29, 2024 · Diaporthe humulicola (causal agent of halo blight) overwintering structures (pycnidia) observed in hopyards significant inoculum. Removing this tissue through … how far can a dog hike
The Identification of a New Species, Diaporthe humulicola, a Pathogen
WebMay 31, 2024 · We propose the name Diaporthe humulicola. The disease increased under hot, humid conditions (around 24°C and 90% relative humidity), which prevail during the … WebThe distribution ofDia- porthe sp. 1-MI was widespread among 347 cones collected from 15 Michigan hop yards and accounted for >38% of fungi recovered from cones in three hop yards.Diaporthe sp. 1-MI causing halo and cone blight presents a new disease management challenge for Michigan hop growers. Diaporthe is a genus of endophytic filamentous fungal plant pathogens. Diaporthe species have been shown to transform the infection-inhibiting factors (+)-catechin and (−)-epicatechin into the 3,4-cis-dihydroxyflavan derivatives. Some species, like Diaporthe toxica, produce secondary metabolites that result in toxicoses of animals such as lupinosis of sheep. how far can a dog run into the woods