Insect and Spider Identification: Help identifying insect on blackberry, 1 by Byron14

Byron14 wrote:
I\'ve had this potted blackberry bush indoors for a couple of months now. I don\'t do the regular maintenance while it\'s inside, but today noticed an infestation of these miniscule mites in silky webbing. Can someone help identify the bugs and suggest a remedy? I\'m assuming they\'re causing the damage to the leaves, but I\'m wondering how bad the damage needs to be before I remove the leaves. Thanks in advance.