Disease on crop
fungalSpur Blight on red raspberry
Didymella applanata
Fungal disease that produces purple-brown lesions at leaf nodes on red and yellow raspberry canes, weakening fruiting laterals.
- Disease
- Spur Blight
- Pathogen type
- Fungal
- Crop
- Red Raspberry
- Scientific name
- Didymella applanata
Spur Blight on red raspberry
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Symptoms on red raspberry
- ▸ Purple-brown lesions centered on leaf nodes
- ▸ Premature leaf drop
- ▸ Weak or dead lateral shoots in second year
IPM controls
- ✓ Annual removal of fruited canes after harvest
- ✓ Wide spacing and aggressive thinning of new canes
- ✓ Lime-sulfur dormant spray
- ✓ Avoid excessive nitrogen which promotes dense weak growth
Other crops affected by spur blight
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