Can you go four for four? Here are the questions: 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…
May 7 Quiz
May 7, 2014