Quiz – To spray or not to spray

What would you do – spray or not spray – in the four scenarios outlined in this quiz?

1. Can you safely spray herbicide on canola plants that are damaged by wind?
2. Should you spray insecticide on these seedlings with an average 15 per cent (or so) leaf area loss due to flea beetles?

3. Should you spray the weed indicated with the arrow?

4. Should this crop-scouting quad get a disinfecting spray?