For modern row crop faming (corn, soybeans, wheat, etc.), weeds are generally no longer a problem. Most row crop farmers now use glyphosate, the active ingredient in Roundup, as the major herbicide. Virtually all weeds in row crop fields are vulnerable to glyphosate.

Pasture weeds are a different problem, as herbicides are generally used there. Canada thistle is always a problem.

Dame's rocket can be weedy. Don't use it. In fact, don't plant any non-native species. If you stay with the natives, few nor no invassive problems will occur.

--John Blakeman

Prairie Moon Nursery, and Prairie Nursery are you friends! April