Five years after this pathogen was deregulated, one of our foremost agronomists says clean seed, residue management, and smart planning are the best first steps to prevention. When I’m asked about Fusarium in Alberta, my first instinct is to say: it depends on the year. Mike Harding, plant pathologist with Alberta Agriculture and Irrigation Since 2006, we’ve been surveying wheat fields across the province for Fusarium graminearum, the fungus responsible for Fusarium head blight (FHB).