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Donna from Cleveland, Tn. writes,

How long does Maxforce FC Magnum last once applied? I read that it lasts for months, but I have seen a couple....

I saw a roach 4 times recently, and was only able to kill one. I don't know if it was the same one each time, as I haven't seen any since. I also have not seen any dead ones since the few I saw within the first week of applying gel May 1st. I think it was a pretty small infestation. Should I wait for a while before using the new stuff I just ordered? The one(s) I just saw were very much alive and active, so I don't know if it was a case of waiting for it to eat the bait. I saw it/them 3 nights in a row before I killed it. Then no more. Please let me know, and thanks for your time.


While roach gel can stay active for a long time, it is also possible that it can be contaminated by cleaning products, ciggarette smoke, perfume and cooking oils. We do recommend that you put down new bait every 2 weeks during an active infestation. We also recommend you use an insect growth regulator such as Gentrol Point Source to prevent hidden roaches form reproducing.

Answer last updated on: 07/12/2014

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