I have a moth infestation in my living room. They've attacked a rug. I also have two chairs in there, both probably considered "mohair," but very different from each other. One is almost demolished by moths; the other is untouched. They've also ignored my velvet sofa.
Is there a way of knowing in advance what fabrics the moths will eat and what they'll ignore? Do I have to know what species of moth they are? I would like to use this information to help me buy a new chair.