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Pest Control/Strange spots (insect feces?) keep appearing. What is it?

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For a couple of weeks now I have been finding these clusters of dried spots around the floor in my living room. I also found some on a widow ledge and a coffee table. Today I found the attached photo on my bathroom sink.  I live in a brand new house in a new neighborhood in a residential area in an Austin suburb. Please help!

Answer
Kyle,

These could be from cockroaches. If you live in a multifamily apartment complex control can be difficult but if this is a single family home control is fairly easy. See http://www.livingwithbugs.com/cockroaches.html and follow the links to control. The new cockroach baits work best and can be combined with "crack and crevice" sprays. In your warm climate cockroaches can enter homes from the outside so you may need to treat around the foundation with weather-proof baits as well (see the pages above).

Jack DeAngelis

Pest Control

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Jack DeAngelis

Expertise

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.

Experience

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.

Education/Credentials
Ph.D. in Entomology

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