Alternaria Leaf Blight
- Leaflet margins and tips turn dark brown to black with a yellow halo
- Lesions first evident on the lower, older leaflets
- Many lesions growing together result in black, shriveled dead leaves
- Large lesions can also develop on the petioles and may girdle and kill the leaves
- Roots are not directly infected, but may be small due to severe leaf damage
- More information on Alternaria Leaf Blight...