And one of its most prominent features is amazing fall color.

Oak wilt is known to have killed a large number of oaks in North America. Iron chlorosis: This is another cause for the leaves to turn yellow. It is an iron deficiency that plagues the oaks. Many gardeners and forest officials often conduct surveys and oak tree leaves identification, to Estimated Reading Time: 3 mins.

May 30, One of the most common causes of yellowing oak leaves is an environmental condition known as iron chlorosis. Often found in USDA zones four through eight, this condition is characterized by an iron deficiency.

When a red oak tree is unable to consume enough iron, its leaves may turn yellow or even fall off and die. Click to see full answer. Sep 21, A new oak tree with leaves that are turning yellow could simply be situated in soil that contains a high level of alkalinity.

This disorder is commonly known as iron chlorosis and is the result of too little iron being available to meet the nutritional needs of the oak. Sep 21, Oak Trees With the Most Beautiful Foliage & the Best Fall Colors. White Oak. White oak foliage is typically deep purple in the autumn.

The leaves cling to the tree through the winter, and drop when the new leaf buds Red Oak. Black Oak. Pin Oak. Sawtooth Oak.