Before emerald ash borer (EAB), Rob Davis was just your Friendly Neighborhood City Forester in Denver, Colorado (no seriously, this handsome gentleman is actually our city forester). But with EAB bearing down on the ash trees he was sworn to protect, Rob had no choice but to become … The Smart Ash. Now, he goes around the Mile High City, educating its citizens about how best to defend their ashes.

Episode 1: Origin Story – His parents are fine, but his trees were dead

“I still remember the moment I heard the news like it was yesterday. An epidemic was sweeping through my hometown of Ashfield. So I went home to see if my parents were safe. They were fine. But all the trees were DEAD!”

In Episode 1, the origin story of The Smart Ash is revealed — as is his very real nemesis, the insatiable beasts know as EAB. Stay tuned for episodes 2-6 to find out about the equally real arborist tools Rob uses to fight EAB — tools that can also be used to protect your ash trees in Denver.

Episode 2: Trunk Injection – It will find the EAB, and it will kill them

Since it can be more than 90 percent effective, the first treatment option The Smart Ash often turns to is trunk injection. This insecticide treatment needs to be updated once every 1-2 years. Yes, this process does slightly harm the tree, needs to be applied by a licensed professional and can be costly. But it’s also the most consistent option.

Episode 3: Soil Drench – Deadly when soaked

The soil drench treatment is administered as a liquid or granules into the soil around the tree no more than once a year. It’s cheaper than a trunk injection, and you can apply it yourself. But it’s less consistent — especially if you have a large tree. So you’ll likely get better results if you hire a pro, like The Smart Ash.

Episode 4: Bark Spray – This insecticide insecti-fries

Bark spray is another economical treatment option that is applied yearly. Even though it’s wafted onto the bottom 5-6 feet of a tree using nothing more than a common garden sprayer, this airborne pesticide can drift and might harm other nearby insects. Therefore, this treatment should only be executed by a license pesticide applicator.

Episode 5: Remove & Replace – Knock, knock. Who’s there? VENGEANCE!

There’s only one treatment that’s 100 percent effective at eradicating EAB. And that’s removing your ash entirely and replacing it. As explained in the series finale, this works well for younger, smaller trees that may be no match for EAB.