The slightest touch will crush them, even wiping them with your hands, a tiny brush, anything will reduce their numbers.
My screen is very small, so it's hard to say for sure, but I think I see little mites in those webs, many people will need a hand lens to see them, they are in fact very small... But if you pick one little dot and watch it a while, it'll move if it's a mite!
Once you get an eye for them, learn their trucks and a few of your own, you'll be able to spot them in no time!
