I used this stuff on my hop plants for spider mites
http://www.gardensalive.com/product.asp ... 1218906037
Only had to use it twice.
I don't know if I would use SEVIN, one of the sights I was reading said it killed all of the predators of spider mites but not the mites. I didn't get any mites till we treated the yard with SEVIN to get rid of the chiggers.