Roaches do not get there overnight so they will not leave overnight. It takes time for the bait to work through an active population. We highly recommend applying an insecticide and an insect growth regulator to the indoor and outdoor perimeter of the structure for a better treatment. I have also included a roach control article that offers great information. Please put out fresh bait once every two weeks. The food based ingredients attract them for consumption and they spread the product to one another.
http://www.domyownpestcontrol.com/cockroach-quick-tips-a-59.html
http://www.domyownpestcontrol.com/roach-control-t-4.html
Maxforce FC Roach Bait Gel contains food ingredients as the bait matrix, plus an insecticide active ingredient. We are not exactly sure what you mean when asking if it is food grade since it does contain food. You can use this product in food-handling areas such as kitchens, however, you should not contaminate human or animal food or feed since it also contains an active ingredient.
Maxforce FC Roach Bait Gel is labeled as a portion of a roach control program. Please take a few moments to review our treatment guide and videos for a successful roach control program.
Maxforce FC Roach Bait Gel cannot be applied in vehicles. The very first thing you should do is thoroughly vacuum every inch of the car and steam clean the seats and carpet as much as possible (don't forget the trunk). Next you can use Advion Roach Bait Arena Stations inside the car. The roaches will eat the bait and transfer it to the other hidden roaches. It will likely take several weeks to completely get rid of the roaches.
Maxforce FC Roach Bait Gel is labeled for American, Brown-banded, German, Smoky brown and Oriental roaches.
Maxforce FC Roach Bait Gel is also effective on large American, Brown-banded, German, Smoky brown, Oriental roaches.
Maxforce FC Roach Bait Gel is only labeled for roaches. You can find all of our mouse control products here.
Maxforce FC Roach Bait Gel is only labeled for cockroaches. You can take a look at the ant bait gels offered by Maxforce by clicking here.
Maxforce FC Roach Bait Gel should be applied in areas where you did not spray or will not spray with insecticides. You should clean up any remaining gel and apply to crevices not treated with a spray or in non dusty areas. You will clean and dry first and then apply the gel. Please take a few moments to review our treatment article for a successful eradication program on How to Get Rid of Roaches.
No, roaches should not carry the Maxforce FC Roach Bait Gel on to plates or any other dishes. They consume the bait from that area and will die in areas around the colony. The way the product is spread throughout the colony is that they consume each other when they die. We would be more concerned about the roaches themselves and their skins and droppings; you should thoroughly clean any areas that you believe to have roach activity.