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Pest Control/Roaches and borax


QUESTION: Curious about this.  I trapped some baby roaches and a roach pill in a coffee can.  Left it overnight.  The roaches were still running around the next day.  Any idea what could have happened?


What is a roach pill?

Jack DeAngelis

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QUESTION: Oh, I meant the Harris roach tablets.

The roaches must eat the tablets to work and overnight might not be long enough. Try adding a source of water such as wet cotton and letting the "experiment" run a little longer. Also, here's some info about using boric acid for insect control

Jack DeAngelis

Pest Control

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Jack DeAngelis


I can answer questions about the control of pest insects, spiders, mites and related arthropods. These household pests include termites, carpenter ants, powderpost beetles, nuisance ants, bed bugs, cockroaches, fleas, wasps, and many others. I can also answer questions about using pesticides and other pest control tools such as baits and traps.


I am a retired university extension entomologist. I've taught and conducted research in urban and agricultural entomology. I've published over 70 extension publications, 20 research publications and several books about insects.

Ph.D. in Entomology

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