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Pest Information

Bigleaf Mistletoe

Bigleaf Mistletoe

  • Latin Name: Phoradendron Macrophyllum
  • Common Name: Bigleaf Mistletoe
  • Other Names: N/A

Pest Details

Bigleaf Mistletoe
Bigleaf Mistletoe

Origin:

Native to the western United States, and widely spread from the Pacific Coast eastward into Texas and south into Mexico.

Biology:

Perennial, parasitic broadleaf plants that grow on trees such as oak, poplar, sycamore, ash, willow, and others. Berries form, and are eaten by birds, which then spread the seeds as they defecate on other trees. Berries are poisonous to some mammals.

Identification:

Broadleaf mistletoe differs from several other varieties by its large, thick leaves that may be 2 inches long. Leaves are round to oval and smooth and waxy. Stems are thin and weak, and snap off easily with disturbance or strong wind. Roots extend into the tissues of the host tree. Flower clusters form on short stems, as clusters of from 6 to 30 small, whitish flowers.

Characteristicts Important to Control:

Difficult to control due to its inaccessibility in large trees, and general lack of chemical products that would not also harm the host tree. Physical removal does not affect the roots, which in time will regrow. Some effectiveness is found with growth regulators applied while the host tree is dormant.

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