Mistletoe in Cotoneaster: Parasite Management on Shrubs

Mistletoe: Equal-Opportunity Parasite on Your Shrubs

Finding mistletoe growing on cotoneaster instead of its typical oak host is surprising but not unusual—mistletoe infests many woody plants.

How It Spreads

• Birds eat sticky berries
• Seeds deposit on branches via droppings or beak wiping
• Seed germinates, haustorium penetrates bark
• Parasite taps into host's vascular tissue

Management on Shrubs (Advantage: Accessibility)

• Prune out infected branches at least 12 inches below attachment
• Dispose of mistletoe—don't compost (seeds survive)
• Monitor for regrowth from embedded haustoria
• Repeat annually until eradicated

Why It Matters

Mistletoe weakens hosts by diverting water and nutrients. Heavy infestations cause branch dieback and increase drought susceptibility. On shrubs, you have the advantage of reach—unlike 50-foot oaks.

Resources

Mistletoe Control and Mistletoe on Fringe Tree for additional guidance.

Mistletoe growing on cotoneaster branch

Close view of mistletoe haustorium connection

Multiple mistletoe infections on single shrub