I tried every organic method I ever heard of and about every poison known to man.

Some stuff only seemed to work but after a week or 2 the mites got immune.
I swear I had birds dropping out of the sky from just flying within 100 feet of my plants...

Nothing worked for long.

Mites hibernate when things get tough and egg carrying females come back out after a while and start the whole invasion again.

My invasion lasted 3-4 seasons.

Last winter we had a solid week or so of mid to low 30 degree nights and it seemed to have killed the mites.

Mites are smart.

Weeks after I emptied out my grow shelves I had mites dropping out of my light fixtures looking for plants.

It seems they had hitched a ride inside on me or the few pods I got during the season from the few plants they hadn't killed.

I don't think anything I did really got rid of them.
Just slowed them down.

I made things hard for them with everything I sprayed my plants with but I think the cold nights actually killed them.

I feel for you...

As a side note.I think all the crap I sprayed my plants with hurt them as much as the mites did.
Also it seems mites leave a toxin in the plants and the few survivors took months to come back.

One think I think helped spread the mites was my watering wand,long handled shower type thing.
I think that mites got on it as I watered and dropped off onto other plants.
Same with when I picked pods or weeded.
They also ride the wind on pieces of web to get to other plants.

Suckers are nasty to get rid of.
Mite poisons were expensive and only good until the mites got immune.
I sprayed so much crap on my plants I only kept seeds and tossed the pods.
I didn't look but I bet they glowed in the dark.
I got tons of weird pod variations too.

I grow in pots so I tried isolating the invaded plants for a while,using different stuff on different plants to see if anything would work.

Only thing that did work was a mite systemic for roses but it weakened the plants and wasn't for food crops.

Only thing I read about that is suposed to work but my plants were dead before I could use it was sulfur.
A liquid sold as soil sulfur.
Problem is you can't use it during the day-sun makes it burn your plants.
Gotta be careful with it.
Probably dillute it a lot to see what rate to use without acidifying the soil or burning your plants.
I've read about spraying it in powdered form but it is suposed to be harder to use as far as even coverage etc.

Here is a link that might be useful: Sulfur

Around here, outdoor spider mites are rarely a problem. We have them, but things seem to get balanced outdoors, so mite infestations seem to be kept in check by whatever predator eats them or weather condion mutes them. In Zone 3 they of course get wiped out each winter but come back with the rest of the bugs in spring. But I also grow plants indoors during winter, including peppers, and mite infestations I deal with by throwing out the infested plants... I've never found a cure once they get on indoor plants.

I grow my peppers and tomato seedlings indoors because I am so far north. For the first time, this year, all my tomato seedlings were infested with spider mites...started about mid-May when they were almost ready to go outdoors. I followed directions from someone on the 'pest' forum: I washed each leaf of each plant first with soap and water, then with water, and covered each plant loosely with a plastic bag. The jet of water had to be pretty hard. Then I left them overnight and that killed most of them off. Lost several leaves, but I only lost two plants...Black Russian. I don't know how Smokemaster manged to 'see' mites all over the place. I only knew they were there because of their effects. Anyway, I am already harvesting tomatoes, so it worked for me.

Neem has done a good job for me this year on the spider mites, starting in Feb inside a had a little damage.

Some good reading on spider mites goes along with a lot of what Smokemaster said. From the article "sevin treatments in lab testing increases reproduction in mites than untreated" also seems from the article dusty roads are favored conditions for mites. I just hope I never have to deal with these things.

Hope this read helps, also talks about sulfur treatment

Here is a link that might be useful: Spider mites

When you have spider mites as bad as I did you spray the plants down at dark thirty AM and they are completely covered with mite webbing by noon.
Whatever kind of red coloured spider mite I had was very easy to see without a glass.

I hear broad mites are a totally different story.They like hot and humid.Supposed to be even harder to kill/control.

I also found out that Hundreds of $ worth of predator mites and other mite eaters couldn't keep up with the reproductive rate of the mites I had.

I think you can only control mites if you get them from the start.
The problem is at first you think you have a nutrient problem.By the time you see the webs you are screwed.
If you do find a mite or 2 you probably have hundreds you can't see YET...
Every day my plants looked like they were covered in gray angle hair.

I almost forgot.
Hot shot no pest strips work great to kill the mites but you can't use them in a place you hang out in or have food around.
I've heard people put smaller plants in a 30 gal. garbage bag with a pest strip in it for a couple days to kill the mites.My plants were too big to try it out on.
The pest strips did kill the mites indoors.

Thanks for all the help yall..... The only ones I actually saw was one day I turned over a lower leave which was yellow and saw what looked like about 400 eggs ON ONE LEAF, then two months later webbing, now the random adult crawling all around. I think Ive pissed them off with the nightly water sprays. I Hope.