Disease on crop
fungalPecan Scab on pecan
Venturia effusa
The most damaging pecan disease in the humid Southeast, causing leaf and nut lesions that reduce yield and kernel quality.
- Disease
- Pecan Scab
- Pathogen type
- Fungal
- Crop
- Pecan
- Scientific name
- Venturia effusa
Pecan Scab on pecan
Detailed guidance for this section is being prepared. Check back soon.
Symptoms on pecan
- ▸ Olive-black spots on leaves and nut shucks
- ▸ Premature shuck blackening and shriveling
- ▸ Nut drop and reduced kernel fill
IPM controls
- ✓ Plant resistant varieties (Kanza, Elliott, Pawnee for the southern range)
- ✓ Fungicide program from leaf-out through shell hardening (commercial only)
- ✓ Prune for airflow
- ✓ Avoid overhead irrigation
Resistant varieties
Kanza Elliott Pawnee
Other crops affected by pecan scab
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