Small Horticultural Farm: Pest and Disease Identification Key
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Small Horticultural Farm: Pest and Disease Identification Key
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CABBAGE, BROCCOLI, & CAULIFLOWER
STEM CANKERS
Cause: Black leg (Phoma lingam), a fungal disease. Cankers usually appear at the base of stem. As the disease progresses yellow leaf spots develop.
Treatment: Rotate crops annually and remove crop debris. Avoid planting sites where other cole crops were grown in the previous year. Disease resistant varieties and disease free seed are available.
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