Easy!

Tonight, turn a trash can upside down over each plant.
Place a fresh, no-pest strip in each can.
Wait 2 hours, or all night.
Remove the cans.
Dead mites.

Seal the NPS in a gallon zip lock and put it in a cool, dark, place.
You will need it again.

No pest strips are a vapor release chemical.
They are fairly safe for people and pets but deadly to wee critters like the borg.
Because it is a vapor, there is little, if any, residue.
Arguably the safest, most effective, remedy available.

Now, here's the important part.
The eggs are still viable but it takes 3 or 4 days for new hatch to mature enough to lay more eggs.
So, whether you see live mites or not, in 3 days, do it again!
That will kill the new hatch before they breed.

And, just to be sure, repeat one more time in 3 more days.

My gals are outdoors, in containers,
I bring them in when I see mites and put them in a shower stall for a couple hours.

And get some dryer sheets to cover the soil.
Spider mites weaken the plants.
Weak plants invite attack.
Lay the sheets on the soil surface and you will shield your ladies from fungus gnats, whiteflies, and root aphids all in one swell foop.

That will be 2 cents, please.

Aloha and good luck.
Weezard