Common Diseases in Pin Oak Trees

The pin oak (Quercus palustris) is a tree in the red oak family that is native to the eastern United States.

Common Diseases in Pin Oak Trees

Chlorosis

According to the Iowa State University Horticulture and Pest News, the most common affliction for pin oaks is chlorosis, a disease caused by an inability to absorb iron from the soil. This problem results from the alkalinity (high pH) of the clay-rich soils in the North Texas region, which over time prevent the absorption of iron. This disease typically presents as yellowed leaves, and may progress further to curled brown leaves. Left untreated, chlorosis will eventually kill the tree. However, the condition is reversible if addressed early through the administration of supplemental iron.

Oak Wilt

Pin oaks are particularly susceptible to oak wilt, a fungal infection which can be spread through beetles, root networks, and through firewood collected from infected trees. This disease progresses quickly in red oaks like the pin oak, and can kill a tree in as little as one month. Thus, oak wilt in pin oaks is best managed through preventative practices like careful pruning and wound-sealing. The Texas Oak Wilt Partnership states that the most obvious symptom in pin oaks is bearing red leaves in the summer when the leaves should be green. For more information on protecting oak trees from this fungus, read about Texas Oak Wilt Prevention.

Canker (Anthracnose)

Anthracnose is caused by a fungus which grows on the leaves of a tree. The UMASS Center for Agriculture, Food and the Environment finds that pin oaks are not the most susceptible to this fungus, but may be seriously affected when they are already afflicted by other diseases. While the fungus itself is not visible, lesions on young leaves and defoliation indicate its presence. Because the fungus thrives in warm, moist, and shady environments, it is most abundant on the lowest parts of the tree in the milder seasons of fall and spring. Canker is typically manageable in an otherwise healthy tree.

If you need a diagnosis for your pin oak, or want more information about the prevention of common pin oak diseases, contact our board certified arborists at Advanced Tree Care.

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