Trees and Shrubs Turning Yellow? They May Need and Iron Spray

Iron Chelate for Foliar Applications. This iron chelate dissolves in water for liquid applications to the foliage of plants that are yellow from a lack of available iron.

If you missed your early application of iron EDDHA to the soil you can make up for it now by applying this iron chelate to the foliage. You should add a wetting agent to help this iron product enter through the leaf surface. If you don't have one then you can substitute 1 tsp of liquid detergent to each gallon of spray.

You should also add a pH stabilizer to the water before adding this chelate to be as effective as possible.  If you don't have one then spray as soon as possible after mixing the chelate into the water and do not store the iron solution for any length of time. Use it all in your applications.

Spray and saturate the leaf surface until the iron spray solution begins drippiung from the foliage. You should see results in 24 hours. In some cases 3 to 4 applications may be required a few days apart to fully darken the leaves. Apply it during the coolest parts of the day.