Blackleg video quiz for CCA credit

1. What species of blackleg contributes to yield loss in Canadian canola production?

2. Which technology was introduced in the mid 1990s to help manage blackleg?

3. If your canola variety has the major resistance gene Rlm1, what avirulence gene would it need to interact with to create a hypersensitive reaction?

4. Major gene resistance in canola will not be able to stop the pathogen when which genes/alleles are present in the blackleg population?

5. How do quantitative genes work to control blackleg?

6. One challenge to disease management is the difference in diversity between the blackleg pathogen populations, and the resistance genes deployed. How do the blackleg pathogen populations compare to the current Canadian resistant varieties being used?

7. With the adoption/increase of using one major resistance gene, what happened to the pathogen population in western Canada?

8. Using the 0-5 disease severity scale, what was the decline in yield for every unit increase in disease severity?

9. What are the 3 top management practices that need to be used when dealing with blackleg?

10. Having a variety that is labelled as R(BC) means?