QUIZ – Pre-harvest sprays

Timing is critical for pre-harvest sprays, and the safe staging (for canola yield and quality) might be later than you think. Here are three questions to test your spray staging knowledge.

1. What is the correct canola crop stage to apply pre-harvest diquat? 

50-60 per cent seed colour change (in the least mature areas of the field)

80 per cent seed colour change

90 per cent of seeds (in each plant) have turned completely brown

2. What is the correct canola crop stage to apply pre-harvest glyphosate? 

50-60 per cent seed colour change (in the least mature areas of the field)

80 per cent seed colour change

90 per cent of seeds (in each plant) have turned completely brown

3. What is the correct canola crop stage to apply pre-harvest saflufenacil (Heat LQ) + glyphosate?

50-60 per cent seed colour change (in the least mature areas of the field)

80 per cent seed colour change

90 per cent of seeds (in each plant) have turned completely brown

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Pre-harvest products and how to use them