QUIZ – Big weeds through the combine

1. Manitoba weed management specialist Kim Brown calls this weed "frightening." What is it?

2. Kochia patches like this one are all over the Prairies this year. Most of them will be glyphosate resistant. While a common canola seed rate is 100 seeds per square metre, how many seeds per square metre does this kochia patch produce?

3. In recent field trials, Agriculture and Agri-Food Canada (AAFC) research scientist Charles Geddes found that pre-harvest glyphosate plus saflufenacil decreased viable kochia seed production by ____ per cent, on average, when applied 10 days before harvest. (Fill in the blank.)