Parsnip Canker
Scientific Name
Sclerotinia sclerotiorum
Description
Parsnip Canker is a fungal disease affecting parsnip plants, causing sunken, discolored lesions on stems and roots. It leads to tissue decay and plant collapse if not managed.
Characteristics
The disease is characterized by dark, water-soaked lesions that eventually turn dry and brittle. Infected areas may develop a fuzzy mycelium, and the damage disrupts the plant’s vascular system.
Control Methods
- Organic sprays: Use copper-based organic fungicides or neem oil at early signs of infection to curb disease development.
- Cultural practices: Remove and destroy infected plant material and sanitize gardening tools between uses.
- Preventive methods: Practice crop rotation, ensure proper soil drainage, and avoid overwatering to prevent conditions favorable to infection.
- Biological controls: Introduce antagonistic microbes and beneficial fungi that compete with the pathogen.
- Mechanical physical: Employ physical barriers in high-risk areas and remove plant debris promptly.
Natural Enemies
- Beneficial Fungi
- Antagonistic Bacteria