Yes it will be hard but not as hard as you might think. If not for them being in your flower room I'd say toss them but now that they're in you already have them and will have to deal with them if you want to continue growing. The flowering room presents more problems because you probably don't want chemicals in there as long as you have plants too so I suggest you put a vacumn cleaner to the pests and suck them out of there. A vacumn cleaner with hose attachement is needed as the beater brush of an upright won't be good for the plants so if you don't have a tank-type or upright with hose attachement, get one ASAP. Then carefully put a couple fingers over the end of the hose nozzle so plants don't get sucked in and start vacumning up the critters and their webbing. It really helps to have another pair of hands so if you have a trusted friend call him/her over. If done every other day or so throughout the flower period you'll be able to control them to the point you'll hardly notice them but it will not get rid of them totally...this is only for getting infested plants to harvest. Once harvested you're going to have to get postal with them and set bug bombs off several times over a couple weeks and I would also suggest repainting entire room to be sure it's clean. But if it was my garden I would not want insecticide chemicals on anything I'm putting into my body and the vacumn method doesn't get much safer.