Here's what I call my "WAR SPRAY". All measurements are per gallon. Remember this must be done every single day for two weeks in veg or early flower. For the sulfur, I use Bondies citrus, fruit and nut orchard at 1/4 cup with 2 tablespoon of dish soap. The Isopropyl spray will consists of 2 cups of 99% iso. 4 to 5 cups if its lower strength like the common 40% at the super market. The 3rd day spray is just plain tap water with nukem enzymes at 3 tablespoons.
I use a Hudson atomizer sprayer. I hit everything on the plant, under, over, the stems and pots too. With a 2 gallon mix I able to hit 60 full grown plants in veg in about 40 mins including set up and clean up. Please, adapt this to whatever method you are using to spray your plants with.
After I got russet mites, spider mites became a joke. Mites can not develop immunity to these sprays. Hope this helps!