Jeff from Flushing, Mi writes
Propiconazole 14.3 will work for oak wilt. Per the product label, using the product by trained arborists (in injection techniques) as a flare root injection for prevention and treatment works best. We recommend that you contact your local cooperative extension office and/or find an arborist who can help you with prevention methods in case you have trees that haven't been infected yet.
Answer last updated on: 04/20/2018