best ways to fight roaches

[Account Closed]

to make a long story short, i had tenants move out the week before i bought the building and they lived in filth..even my contractors didn't want to go in there, it smelt so bad..there were roaches everywhere. i had a guy come in and spray..twice the roaches are going into the adjacent apartments due to the spray, bait, and the fact that the food source is gone since the tenants are gone. i have one very clean OCD tenant who i don't want to lose that is planning on moving out bc some of the roaches are moving into his apartment through the walls...do yall know of the best roach killer? these bastards are resilient, and even if you kill them, there's babies in the walls, meaning i'll have to kill another generation of them...hoping you guys might know a 'little known' trick or something..any ideas??

[Will Barnard]

Forget about baiting them.
Spray alone will not do it as you see.

Contact a licensed pest control company, speak to their COMMERCIAL department and request a quote for a full fumigation. Request that they drill holes in the walls and shoot "Borid" (which has an active ingredient of Boric Acid in powder form) in there. They should also fumigate using "Pyronyl UL" which is a mixture of Pyrethrins/Butoxide/Piporonyl. This is a flushing agent that causes the roaches to flush from their hiding places, run into the freshly sprayed chemical (I always prefered the chemical Demand CS with an active ingredient of Lambda-Cyhalothrin)

It may take 2 or even 3 treatments to eradicate the problem and is not cheap if done right. If you give me the size of your building, I can tell you what you should expect to pay.

Will