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★★★★☆
Use in Combination with Other Products
Our former upstairs neighbor created a roach problem due to filth (after slipping into a drug habit and eventually needing to be taken away by the police for a psych evaluation), and suddenly for the first time in our lives we not only had a roach problem, we had an infestation (even seeing them during the day, which, when that happens, means they're overcrowded in the walls and so on, and out looking for food away from the rest of the colony).
What finally worked, after trying many other things, was to bomb the place with Raid Max Concentrated Fogger. I used Raid Max Concentrated Fogger in every room on the same day and it did indeed reduce the problem significantly and gave me a head start on getting a handle on it, but there were still a few stragglers for the next few days (it was that bad).
In addition to Raid Max Fogger, I used Combat Source Kill (in cupboards, drawers, under the refrigerator, and so on) so any stragglers might take the bait back to their nests, share it, and wipe out the colony, and I also bought boric acid at my local Walgreens.
These three products (and three different approaches to solving the problem) used in combination worked in about half a week -- finally.
I poured the boric acid behind the stove and refrigerator and in areas where I had frequently seen roaches so knew they had a traffic pattern.
Less than a week later, and they're gone finally, but this product alone won't do it. You want all three.
As I understand it, from research on the Net, you want to take a multi-pronged approach and use something like a household fogger, something like the Combat Source Kill traps in cupboards and so on so any remaining roaches take the bait back to their nests, and you want to keep your place scrupulously clean (even vacuuming things like crumbs from in and around a toaster) so that when you put out boric acid that's all the food source they'll have and they'll eat it. You also can (and should) get diatomaceous earth to sprinkle about under beds and so on to get rid of any number of bedbugs, fleas, and other insects (even microscopic ones) before they become a problem, and then vacuum regularly with a HEPA filter bag in your vacuum cleaner.
After NOTHING I did for a long time worked, this combination of approaches finally worked. (And to make it worse there are multiple kinds of cockroaches and some things that work for some don't much work on others, so a multi-pronged approach is the way to go here.)
Good luck!
October 2012 · Patio Lawn and Garden · verified purchase
the product in question
Raid Max Fogger, Insect Killer for Mosquito, Ant, Roach, Spider, Flea, For Indoor Use, 2.1 oz, 3 Count
4.4★ · 2,547 ratings, as of 2023