1. One gram of soil, less a sugar cube's worth, from a heavily clubroot-infested field could have how many clubroot spores?

2. Considering the answer to question 1, how many canola plants could be infected with clubroot if that one gram of heavily infested soil was sprinkled over an entire acre?

3. Seeding was later than average across the Prairies in 2013, with significant progress made in the last 10 days in May. Alberta was ahead of the pack, with 60% of canola seeded by May 21, 2013. Manitoba was around 50%. Curiously, what percentage of intended canola acres were seeded in Saskatchewan at that time?

4. What was the average canola yield across the Prairies in 2013?