Ahhh I cant give you any more rep seamaiden, must spread it around and such. (Formerly) Cemsgirl here, and yes I had and successfully treated for(and knocked em on their ass I might add) the dirty bastards (root aphids). I didn't and Wouldn't ever use any chemicals in flower, however the Imid and Triazicide worked like magic in veg :boogie: In flower what I did/do to keep em in check is an every-three-days (faithfully, never missed a one) medium drench with per 500ml RO water- 8ml Azatrol and 1ml SM-90. Just cover the top of the medium and spray around the stalk, lower leaves and such.
I have done another thread at another site on them, so I think for all with this problem can see and know what to do :)