How to Remove Carpenter Bees From Your Deck

LESLIE: Louise in Delaware is on the line with some carpenter bees visiting her home. Tell us what’s going on.

LOUISE: Yes, ma’am. I have a deck in my – at my back door and I have a roof. It doesn’t extend all the way out to the end of the deck. Just about halfway. And I’ve been having, for several years, a major problem with carpenter bees. They actually make perfectly round holes in the roof of the deck.

And I had an exterminator a couple of years ago and he said he would spray it but no guarantees. And he sprayed it and maybe for about five days I didn’t see them but they came right back. But someone told me – it was actually another exterminator, a really older lady. She said to get steel wool and put steel wool in the holes because they can’t get out through the steel wool. Because my cousin put cotton balls soaked in bleach in the holes she had on her deck and they actually ate through the cotton balls and they ate through the caulking.

TOM: There’s the do-it-yourself methods and there’s the professional methods. I’m troubled by the fact that you hired an exterminator – it sounds like it was some time ago – and he wouldn’t guarantee a result. That’s not acceptable. Most professional exterminators have the tools, the knowledge and the pesticides to effectively eliminate carpenter bees with a reasonable guarantee of success.

So, if you have such a serious problem as this, I would definitely suggest that you go find yourself a new exterminator, maybe from a national-brand company like Orkin. You’d have better success with that.

Now, if you want to do this yourself, the reason that the bees form those holes is because they’re nesting. And so the way they’re treated is you spray a pesticide inside those holes. You can also spray something that’s petroleum-based inside the holes, because they don’t like that. You can fill them with steel wool.

There’s lots of ways that you could try this yourself. But given the severity of the problem, I would suggest you find a good exterminator that can treat it with the right type of pesticide and you not have to worry about it. And I don’t think you had a pro last time. You get a pro to address this problem and just get it done, once and for all, alright?