How do you know if you have spider mite infestation? Mites cause damage by piercing plants and sucking plant juices. You will often find yellowish spots on the surface of leaves where mites have been feeding. However, these spots can be caused by different factors, so you want to make sure you have spider mites.⠀ ⠀ 1️⃣ If you've ever seen a fine web formed on your leaves, a non-symmetrical web, then you probably have spider mites. Spiders usually make a symmetrical web. But if you see a web, tha