I have a friend with a custom car building / mechanic shop which is a large place, equipment around the walls, car lifts, etc. With the restrictions we have now how would you go about treating a shop like this for roaches? In the past I have treated around the base of the walls as much as possible, under equipment the best I can, and spot treated around the doors and any possible entry points. Mainly I see American and Australian roaches and there are no moisture issues that I can see. There is no break room so no feeding area or water resource. There are two bathrooms just off of the shop which I treat. The way I have treated in the past has worked just fine, and just wondering what your professional thoughts are.
First, I guess, is that I don't know of any new restrictions on the use of insecticides indoors for a site like this. You may be referring to the new label changes on synthetic pyrethroids, but these only address outdoor settings and refer to restrictions in using these products on exterior surfaces of the structure and on "impermeable" horizontal surfaces such as patios or sidewalks. I don't think these changes should have much effect on how you would treat for cockroaches, either inside or out. This, however, doesn't necessarily mean that what you are doing or have been doing should not change in some way. If it is not currently fixing the pest problem then continuing it would seem to be a poor course of action.
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