EXAM – Canola Watch 2025 – Section 1

2. Canola Watch added detail to its Fundamentals article on cabbage seedpod weevil. We know that weevils will fly to the earliest-flowering crops in an area. This does create a management opportunity to plant headlands before the rest of the crop, which will attract weevils in high concentrations for a targeted spray. According to the Fundamentals article, what is a key requirement for effective “trap” crop acres?

3. Cabbage seedpod weevils lay one egg per pod. Approximately how many eggs can one adult female lay in a season? (Find the answer in the Fundamentals article linked in question 2.)

4. The Canola Watch quiz for September 3, 2025 had a verticillium stripe theme. It asked which of the following symptoms is unique to verticillium stripe?

5. The same quiz referenced in question 4 also noted that seed companies have cultivars for 2026 which claim advanced verticillium stripe tolerance. What does the quiz say is one thing to keep in mind when choosing that trait?

6. Bertha armyworm reached spray thresholds in parts of the Prairies in 2025, coming out of a relatively quiet cycle for a number of years. Berthas are one of many worms that eat canola. Which of the following describes bertha armyworm appearance, as noted in the Canola Watch Fundamentals article on bertha armyworm management?

7. What does the Fundamentals article on cutworm management say is the best time of day to spray for cutworms?

8. Gophers ate a lot of crop in 2025 and inspired Canola Watch to put together a Fundamentals article on Richardson’s ground squirrels. On the timing theme, what is the best time of year to use rodenticide to manage Richardson’s ground squirrels?

9. The Canola Watch quiz for September 10, 2025 included this photo of a white substance found on a lot of canola this fall. What is it?

10. While the substance mentioned in question 9 is not likely to have a major effect on canola yield, experts cited in the answer section of the September 10 quiz said it could affect what?