dont listen to any of these people...
get forbid 4f and be done with it. I have seen more and more people chasing their tails trying to kill these things. they build up immunities to organic things and floromite. bombs only temporarily give you rellief, but give you brain cancer.
forbid is the only way to win that war
I'm chiming in a bit late here. myfather is right, forbid 4f will erase them from existence. I have had mites for the better part of a year now. I had been keeping them at bay using hotshot no pest strips, which kept them at bay but didnt wipe them out. I read about forbid 4f on a local dispensary forum. It is super expensive, like $220 for 8 ounces, but it's also super concentrated so you can buy small amounts on ebay for like $15. 1 ML makes a gallon of spray and you don't even have to spray it on the undersides of the leaves. The $15 I spent is enough to make 5 gallons of spray, plenty to last me a long time. It kills mites AND EGGS systemically right through the leaves.
You can only use this during vegetative stage, or the first week of flowering before they show any pistils. It kills them by drying them out and supposedly they cannot build a tolerance to it. Trust me, I have tried everything under the sun and this is the first thing I have seen that completely eradicates them, since they outlawed Kelthane back in the 80s. Forbid continues to kill for 40 days after the last application.
I sprayed mine during vegetative stage and waited to see what would happen. Normally I would start to see them towards the end of vegetative, this time I saw nothing. I sprayed them again the day before flowering, and again a week into flowering. I sprayed the floor and the sides of my grow totes. I went in and sprayed the room (not the plants, just the floor and sides of the totes) 5 weeks into flowering just to be safe from any crawlers. Have not seen a single mite and that crop is now on its 7th week (8 week strain) of flowering. This shit is miraculous.
Have been told to rotate treatment with several products, but all I have used is the forbid and the mites are gone. I will continue to use it preventively for six months, then will use it once during vegetative every crop after just to be safe. This shit is the bomb KILLS EGGS the holy grail of gardening. Best $15 I have ever spent.