I have a moth problem. Do my best with anti moth products but they don’t work 100% so a lot of my wool and cashmere has darns. I bought a duplicate item in the sale of something I already have as I want a smart version and the one I have already has a small hole. I probably won’t wear the new one this winter and maybe not even next winter and want to keep it moth-free. If I keep it unworn, in the plastic bag it came in, should it be safe from moths indefinitely?