See if a local garden store sells lady bugs. When I have an issue I just turn my heat up over 72 and all the dormant lady bugs get right to work...lol

A grown ladybug can eat anywhere between 30 to 60 insects each and every day. Get a bag and let them lose on your plant... they are great for getting rid of all kinds of mites and that helps with allergies too!...lol

In a week they could probably rid you of most of your mites....oh and eggs which help protect future plants! I just read the dates on these... so I am sure this is way too late to be any help...sorry... please update us all though