There are several approaches to managing Iron deficiency, though some are more effective than others:
Water during dry periods, but avoid overwatering, as excess moisture can actually cause Iron deficiency.
Mulch to improve soil conditions, keeping mulch under 2 inches deep and away from the trunk.
Avoid fertilizing. Excess nitrogen or phosphorus can worsen Iron deficiency. Keep lawn fertilizers away from trees.
Soil amendments may be used, but research shows they are often ineffective for larger trees and may not produce results until the following season. Remember, Nebraska soils already contain iron—the issue is availability, not quantity.
Avoid planting species that are highly susceptible to Iron deficiency in alkaline or poorly drained soils.
Arbor Aesthetics addresses Iron deficiency using a macro-injection system that delivers iron (and manganese, when appropriate) directly into the tree’s vascular system at the root flare. These treatments are performed in the fall and can provide up to three years of improved color, vigor, and overall tree health.
In early to mid-summer, symptoms of Iron deficiency often appear as leaves turning yellow or light green. This discoloration may affect the entire tree or only sections of the canopy. When you look closely at affected leaves, you’ll notice distinct green veins against the lighter leaf tissue. As the deficiency progresses, leaves may scorch, turn brown, fall prematurely, and eventually lead to limb dieback.
https://mortonarb.org/plant-and-protect/tree-plant-care/plant-care-resources/chlorosis/
Nebraska soils are generally alkaline, with a pH above 7. While these soils contain ample iron and manganese, high alkalinity makes these nutrients insoluble and unavailable to trees, which directly contributes to Iron chlorosis. Simply adding iron to the soil may not correct the problem. Compounding factors such as compacted soils, poor drainage, and low oxygen levels can further exacerbate symptoms.
Very common:
Less common:
Yes—Iron deficiency kills trees. Trees require iron to manufacture chlorophyll. Without adequate chlorophyll, a tree cannot produce sufficient energy through photosynthesis, leading to gradual decline. A tree weakened by Iron chlorosis is also far more susceptible to secondary diseases and insect infestations.
There are several approaches to managing Iron deficiency, though some are more effective than others:
Water during dry periods, but avoid overwatering, as excess moisture can actually cause Iron deficiency.
Mulch to improve soil conditions, keeping mulch under 2 inches deep and away from the trunk.
Avoid fertilizing. Excess nitrogen or phosphorus can worsen Iron deficiency. Keep lawn fertilizers away from trees.
Soil amendments may be used, but research shows they are often ineffective for larger trees and may not produce results until the following season. Remember, Nebraska soils already contain iron—the issue is availability, not quantity.
Avoid planting species that are highly susceptible to Iron deficiency in alkaline or poorly drained soils.
Arbor Aesthetics addresses Iron deficiency using a macro-injection system that delivers iron (and manganese, when appropriate) directly into the tree’s vascular system at the root flare. These treatments are performed in the fall and can provide up to three years of improved color, vigor, and overall tree health.
