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While I was exercising in the evening, I would see roaches almost every day in some places. And there were stretches where I almost never would see any roaches. So I decided to take a flashlight with me and see if I could find where the roaches were coming from.
What I learned was that the storm drains were infested with roaches and were the major nesting places of roaches in the city. Occasionally I would see a lot of roaches where there was no storm drain. I investigated and found there was a hole in the ground where a shrub or plant had been dug up. The roaches were using the hole as a nest.
And when my father had a problem with roaches at his house, I used what I had learned to solve his problem. I looked in the storm drain at night with a flashlight and there were a lot of roaches. I used roach spray, but had to do so every two weeks or so. And I found a hole under a concrete slab in the back yard that was being used as a roach nest.
And the other interesting thing that I learned was if I walked around his house at night, there were roaches on the bricks outside. Better to kill them outside than inside. You can use roach spray, but I found a fly swatter worked just as well.
Of course this is only during roach season in warm weather. In the winter, you never see the roaches outside unless it is unseasonably warm.
I tried using boric acid, but it did not work. Boric acid may work on small roaches, but it does not seem to work on the large palmetto bugs that we have in the South.
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