german roach smell


I have a rental condo with a bad infestation of German roaches. Before I can rent it out I need to control them. From reading your articles, I’m going to use gel baits. There is a bad oder in the unit. I removed the carpet. Cleaned with bleach and pine sol, but still smell it. I’m starting to think it is from the roach feces inside the walls. Is this possible?

Absolutely yes! Roach feces (as well as the roaches themselves) are allergens and definitely “smell”. This odor will permeate from wall voids and other areas where they may have been nesting. And don’t waste your time with bleach or other cleaners for the smell; yes it will remove the mess but not the odor. To neutralize the odor, you need to spray or wipe down all surfaces with some NNZ.


This material works on all kinds of odors and is amazing in how it can neutralize any scent. Use it to wipe down the walls, countertops, up inside cabinets and basically anywhere roaches have been seen or known to have been nesting.

NNZ can also be pumped in the wall if you suspect roaches were living in any of these spaces. Keep in mind roaches usually reside in appliances, furniture and other areas inside the living space and though we tend to believe they live in walls, it’s a lot more likely the bulk of the population is somewhere out in the open.

Now once the condo has been cleaned with the NNZ and the odor is gone (should only take a few days), you can begin treatments with some of the gel baits. I recommend a combination of the MAGNUM and ADVION GEL. Using at least two will yield faster results and be sure to renew the applications every 10-14 days until the problem is gone.

Roach Gel:

Advion Roach Gel:

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