Mother Nature is throwing another curve ball this spring at weed forecasts, thanks to appreciable snowfall in some parts of the country’s farming areas that may spark flooding.
If that happens, weed seed distribution can be extended significantly by floodwaters.
This is an immediate concern in Ontario’s southwest, where snow melt and ice jams on the Thames River cause problems, and in Manitoba, where eyes are fixed on the Red River basin.
“A lot depends on the snow melt right now,” says Rob Gulden, a weed ecologist at the University of Manitoba. “Some overland flooding is expected in Canada and the U.S., and that may result in a wider distribution than normal of weeds, including some encroachment from resistant weeds from the U.S. Flooding will also influence weed emergence times.”... Read More