Definitely spider mites - I hate those little (insert expletive). I've used Take Down with pretty good success so far. Espoma also has a product that's essentially this same thing, Earth-tone Insect Control. Both are made with canola oil and pyrethrin. Some people have success with neem oil, but it hasn't worked too well for me. Insecticidal soap, pyrethrin, permethrin, and sulfur will give you some control but you'll need to keep hitting them with something. They are persistent.
Some application tips:
1) Whatever you decide to use, apply early in the morning or after sunset. All of those products can cause leaf burn if the sun hits them when they're wet
2) If you decide to use an oil based product, you cannot apply a sulfur-containing product for at least 21 days or you'll burn your plants. Avoid sulfur when temps are >90 degrees
3) DO NOT USE FERTILOME TRIPLE ACTION PLUS!!! I sprayed it on 3 plants and it almost killed them. It says it's a pesticide, but it acts like a herbicide.
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