We used the bait both indoors - crack and crevice areas near the back of our restaurant near the kitchen and outdoors along the perimeter. We sprinkled the granules along outside brick work as well in some grassy areas and near dumpsters - basically anywhere we felt roaches or crickets would get inside.
A day later we were sweeping up roaches before the restaurant opened. We have been checking and reapplying every few days. Will probably purchase a larger size next time.
This is a new product that Zoecon came out with. I talk to the Zoecon rep at the NPMA Convention this year in Florida. I have an apartment complex that has roaches bad in a few apartments. I used this in the main apartment causing all the issues and the other units. Set the granular bait in 2 RTU bait stations, came back in a week and the bait was practically gone, roaches were STILL feeding on it as I opened the stations. I HIGHLY recommend this product for ANY infestation of roaches. Its affordable and IT WORKS!!!