Posted by John Fasoldt on 11:58:06 7/27/2017 from 22.214.171.124:
In reply to: Carpenter Ants? posted by Michael on 9:11:25 7/27/2017 from 126.96.36.199:
Could be CAs, or maybe not. You'll probably need a 10 power glass to really tell. It probably doesn't really matter anyway, there are many ants that will occupy that niche. Besides, CAs are polymorphic, they come in all sizes... Regardless, it sounds like you're on top of the situation, investigating and not panicking.
And definitely take care of that gutter, and keep watching it. Don't lose sight of the fact that your current ant problem might not be in the roof, I see many more problems in windows and window frames than just about anything else. Might be BOTH! Check closely. Don't do anything "insecticidal" until you're SURE that's what you need to do. Whatever that is, it isn't going to be any emergency.
What do YOU use for 'around the slab foundation' for your pest control efforts? Not the brand name, but the AI (Active Ingredient(s)? If it's "pre-mixed" (if you don't have to mix it yourself), it's probably not what you want to use for an around-the-house treatment.
Most of these types of pre-mixed DIY chems are "repellants," thus you can easily "trap" the ants inside, which means you can make your problem worse. Those chems are mostly effective only for spot treatments of a few inches to a few feet. You are much better off mixing your own, and using your own compressed air sprayer. Then your treatments won't contain propellants and/or the other petroleum distillates, always anathema to insects. And they can mask, enhance or cancel the effects you want.
From what you've posted so far, and at the moment, I don't think you need to do anything except wait for the effects. You could check that window for problems. Probe around the trim pieces, and without damaging trim, see if you can weasel off a couple of trim pieces and see what's going on behind. Look for any frass that's being forced out by the ants, usually around edges or wood joints. Then, if you find ants, dismantle all the trim you can and treat inside the window frame and FIX THE LEAK! (Could be just condensation too!)
SUGGESTIONS / CHEMICALS TO USE
I could go on for hours... And it mostly depends on what you (or don't) discover as you go along. Baits are good for (inside) "spot" treatments. Be aware that before the ants are all gone, you'll actually see MORE - and that's GOOD. Baits with the AI of Fipronil will probably be the most economical, efficient and available. Get the one with the highest percentage of the AI. And you can do most anything yourself.
I don't stay in touch with the DIY market, the manufacturers change brand names CONSTANTLY, as they also do with exterminators. Pre-mixed DIY products, no matter what they say, are mostly made by only a few manufacturers. As such, they're mostly the same. Almost like gasoline; get Shell gas from an Exxon pump. Also keep in mind that Big Pharma produces 99% of the insecticides. BEWARE, it's a jungle out there...
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