Mistletoe Of Oak

Disease Information


Symptoms and damage

If, after all the leaves have dropped in the fall, your trees still have clumps of green in the top, your trees are parasitized by mistletoe (Phoradendron species), a parasitic plant. Although mistletoe does obtain water and minerals from the tree, it does not depend totally on the tree for food. The green leaves of this plant contain chlorophyll and are capable of making their own food.

COMMENTS on disease

 Mistletoe produces small white berries, which are extremely toxic to humans. The stems and leaves are also toxic and are reported to cause skin irritation on contact in some people.


Mistletoe can be controlled by cutting out infected limbs 1 to 2 feet below the point of attachment. In a few instances, breaking out the tops of the mistletoe has proven an effective means of control. Ethephon (Florel Brand Fruit Eliminator) is labeled for mistletoe control. Large infestations may be difficult to control with a single spray application, and retreatment may be required. Make applications after fall leaf drop through mid-winter.


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