July 9, 2014

July 9 Quiz

1. Sclerotinia stem rot needs moisture. Which moisture sources can encourage sclerotinia stem rot infection?
2. Wind has blown over flowering canola in some regions this week. Should a fungicide be applied to a blown over field to prevent sclerotinia stem rot?
3. Pre-harvest interval is the time required between spraying the crop and cutting the crop. Spraying after the pre-harvest interval increases the risk of pesticide residues showing up on harvested seed. Is the PHI the same for all fungicides registered for sclerotinia stem rot?
4. What has damaged this bud cluster?

Damage to florets as a result of swede midge feeding. Source: Julie Soroka

 

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