Emerald Ash Borer Treatment?

I think I’m going to start treating my ash trees next year. Anyone done the research on what “homeowner” brands are most cost effective? Prices seem to vary widely. I usually go to https://www.doyourownpestcontrol.com/ for my chemicals. After doing some research it appears soil drench products are effective and easy. Imidacloprid appears to be effective. Am I on the right track and what’s the product that gives the most bang for the buck?

This is what I have been using, it’s a gamble if it will be enough to stop the bug. I have 7 ash tree’s in my yard. Good luck.

https://www.homedepot.com/p/Compare-N-Save-2-5-gal-Systemic-Tree-and-Shrub-Insect-Drench