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Shitty man... just shitty...
The specks on the bottom of the leaves are the little bastards...
Burn some. It'll make you feel better.
killing your infected plants and leaving others was a mistake. mites travel up to 15ft a day, you can gurantee your other plants will have them in a a short time but I am sure they already do.
Floramite, forbid, or avid. Any of those three work great. You were just making seeds you should have just blasted them with one of the three and been fine. The thing about using pesticides on mites is you have to be vigilant. Hit every spot, and then in a few days do it again. It is all about killing their entire life cycle. I have never had to use anything but floramite.
If you were just making seeds, throwing them out was not a smart move imo. Even if you throw out all your plants, 4 weeks later they can show back up. There is plenty of information here about battling mites, but Im would just stick to research on the three I mentioned. You can order all three in small amounts via ebay.
Shitty man... just shitty...
The specks on the bottom of the leaves are the little bastards...
Burn some. It'll make you feel better.