Iron chlorosis - Ask Extension
My maple was turning yellow last summer. On-line research identified the probable cause as iron chlorosis. Last fall I applied liquid iron according t...
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Iron chlorosis #877097
Asked July 13, 2024, 2:16 PM EDT
My maple was turning yellow last summer. On-line research identified the probable cause as iron chlorosis. Last fall I applied liquid iron according to the instructions on the container. Repeated this treatment again this spring. The tree is now much more green. My question is: how much should the tree be treated and for how long? The container gives no guidance on this. Thanks for your advice.
Washington County Minnesota
Expert Response
Answering your question may be complicated. See these web pages which describe the problem and solutions.
https://www.extension.purdue.edu/extmedia/BP/BP-27-W.pdf
https://extension.usu.edu/forestry/trees-cities-towns/tree-care/preventing-iron-chlorosis
A soil test may help with your decision. There is a fee for this service. https://soiltest.cfans.umn.edu/
https://www.extension.purdue.edu/extmedia/BP/BP-27-W.pdf
https://extension.usu.edu/forestry/trees-cities-towns/tree-care/preventing-iron-chlorosis
A soil test may help with your decision. There is a fee for this service. https://soiltest.cfans.umn.edu/
