Verticilium Wilt

Asked July 2, 2020, 9:44 AM EDT

I am attaching couple of pictures and I am wondering if this is Verticilium Wilt disease? Thanks

Oakland County Michigan

1 Response

Hello,

Verticillium wilt requires a lab analysis or an arborist visit to examine branch and twig samples. https://www.canr.msu.edu/news/verticillium_wilt_refresher

The cracked and missing bark could be from one of many cankers, wind damage, or limb dieback from girdling roots at the base of the trunk or under the soil. If the root system is in extremely limited volume of soil, such as being surrounded by pavement, or is in compacted soil with little oxygen space, dieback can occur. Drought conditions can cause dieback effects years after the dry conditions happened.

Verticillium wilt can be confirmed or eliminated by diagnosis through MSU Plant Diagnostic lab- during Covid19, please contact them by email or phone first, for instructions on how to submit samples: https://www.canr.msu.edu/pestid/

A visit by a certified arborist can give you the answers on girdling root, cankers and anything else going on with the tree. Hire a professional arborist who has taken training in care, diseases, pests and passed certification tests, not just a tree service. Some tree services have certified arborists on staff. . He/she will come on site and give a complete diagnosis and a plant care plan. Find certified arborists by zip code here—-

www.treesaregood.org