John from Shawnee Mission, Ks writes
What is the best time of year to apply the product to mature ash trees that may be attacked by the Emerald Ash Borer?
When using Bayer Advanced 12 Month Tree and Shrub Protect and Feed II, you should treat mid-fall or in the spring when trees are actively growing. Per the product label, you cannot make more than one application per year.
Answer last updated on: 09/21/2015
