We hope to offer you the extensive library of questions and answers in a manner most convenient for you. Here you will find the last several weeks of questions arranged by date. This may offer you a glimpse at seasonal trends in the industry, or just permit you to catch up with the most recent submissions. Just select the title of interest to you and you'll go directly to the full question and answer. If this one is of particular interest or use to you it can be saved for quick reference later, by selecting the "Add this article to my Favorite Questions list" choice at the bottom.

Inspection is Hunting


We are currently servicing a commercial kitchen and the German cockroaches there seem to be getting worse. Our approach so far has been to use a non-repellent spray along with cockroach bait that includes an IGR. We have had success with this in the past but it isn't working in this account. The customer is having the kitchen cleaned often, but they have on occasion used repellent products when there is an outbreak, sometimes after it gets cleaned. We’ve also noticed some roaches coming from the tiled ceiling and will be going out there with a ladder to look above the tiles. Is it common for them to be up high like that? The common theme here seems to be to inspect thoroughly and directly treat pockets of roaches. Can you please explain how to do a good, thorough inspection and find these pockets? Also, would buying a ULV machine make sense for treating German roaches?

Dan , TX


Pest management is comparable to hunting, which requires knowledge of the animal and skill. The more a PMP deals with a pest, the better they should get at finding them because different situations teach what a pest is capable of. Besides being observant and using a flashlight, the most important inspection tool is sticky monitors. They need to be in as many places as possible throughout the kitchen to find pockets, to gauge the extent of the infestation and to provide feedback on treatment progress.

This situation sounds like a large infestation that’s going to take time to manage. I’ve experienced large infestations that have taken months to resolve. They didn’t become large infestations overnight and they can’t be resolved that quickly either. As long as progress is being made, it’s normal to experience setbacks along the way.

German cockroaches aren’t usually in drop ceilings unless the population has gotten so large that they have no choice or repellent space treatments were applied and pushed survivors up into the ceiling. ULV equipment makes sense for treating German cockroaches in drop ceilings or wall voids, although I still don’t recommend using repellent products for this purpose. You may be successful treating these areas with a non-repellent aerosol or dust formulation before deciding to purchase ULV equipment.

Mr. Pest Control

Add this article to My Favorite Questions List