What treatments for Browning of branches on a Wichita Blue juniper?

Asked August 16, 2019, 4:13 PM EDT

How to determine disease treatment for Wichita blue juniper?

Oakland County Michigan juniper

1 Response

Hello, Several fungi may cause browning of the needles on Wichita Blue juniper (Juniperus scopulorum, Wichita Blue). These include Phomopsis blight which often is caused when hard spray from a sprinkler damages the branches and allows the fungus entry that will infect the tree. Insufficient or excessive watering may also cause needles to turn brown, as will Phytophthora root rot. Junipers may also be attacked by insects such as mites. Obviously, it is very difficult to diagnose the cause of your tree’s problem and therefore suggesting a specific treatment is impossible. I suggest that you consult a certified arborist to find the cause and appropriate treatment. Go to www.treesaregood.org, the website of the International Society of Arboriculture to find an arborist in your area.