Iron Chlorosis
Iron Chlorosis is a condition that normally affects Pin Oaks; however, under the right conditions River Birches and Sweetgums can both be affected. Iron Chlorosis is actually a lack of Iron in the tree. Without the needed iron, the leaves turn a pale green to yellow color, while the veins of the leaves stay a dark green. Over several years of being chlorotic, twig dieback will occur.
Iron Chlorosis is most prevalent in areas with a high level of clay in the soil. Soil Compaction, soil and air temperature differences throughout the early spring, floods, and high pH levels within the soils can also make it more difficult for a tree to acquire the proper level of iron, causing Iron chlorosis to occur.
Symptoms
The most obvious symptom is the lighter green to yellowing hue of the leaf margins, while the leaf veins remain green to dark green. If the condition continues without correction, the leaves will continue to yellow finally turning almost white. During the hotter times of the season, the leaves may even curl, brown, and drop off the twig. In the worst case, the branch twigs will suffer dieback, and even death.
Treatment and Correction of the Problem
Several steps may need to be taken to turn around a chlorotic tree; this is dependant on the site and severity of the condition.
Macro-infusion of an iron solution into the root flares of the tree. This will place the iron directly into the vascular system, which will then be carried up the trunk, and throughout the canopy.
Fertilize the entire area under the canopy of the tree with a mixture of fast and slow release solution. This will also help with other macronutrient that may be lacking.
Prune out any of the deadwood that may be present, raise up the dripline, and thin out the canopy as needed.
Contact your RYAN Certified Arborist to learn more about our iron injections or to schedule one today.