Alfalfa
Diseases in Ohio
Verticilium
wilt
- Symptoms
- plants scattered
or in large patches
- yellow v-shaped
discoloration at leaflet tip
- leaflets wilt, turn
yellow or pink and often curl or twist
- small twisted leaflets
near top if stem
- stems are stunted
but remain green
- Environment
- average daily July
temperature does not exceed 70F
- Survival
- fungus lives in
dead plant tissues
- spores spread by
wind, insects or harvesting equipment
- Management
- Scouting
