Yeah... I use big ones, I think they are like 5x8 inches, double sided sticky. I put them on every plant from the beginning even if I don't see anything. It's a good early warning system to see if you do have a pest problem. End of week 13???... damn! They should be done by now. Lets see a pic.Yes. I am on end of week 13 and think I still have a few weeks to go. So just put sticky traps around the base of my pots and all over the grow area?