Sorry, my mistake, I buy from the canadian amazon since I live here and assume if we have it, likely already sold in the US. Looks like you can order from the canadian site and get a great deal on the exchange rate or give this a try. Neem oil has been quite effective for others. I’ve used two other Safer’s products to deal with spider mites and caterpillars with great success.
Perhaps a local garden store or grow shop might carry specialty products with predatory mites or nematodes.
This is the neem oil I use Safer 5180-6 Neem Oil... https://www.amazon.com/dp/B079MV11S3?ref=ppx_pop_mob_ap_share