I use suffoil-x mixed with mycotrol-wpo in my hudson fogger. I mix 1 ounce of suffoil (one jigger) with 11/2 tablespoons of mycotrol -wpo to a 1 3/4 gallon sprayer tank. I mix with a low presure air pump for Emulsion to make sure I get a good even flow. I do this before I have a infestion. I spray it at planting or a few days after. then again every 20 days until a week before harvest.
If you have a russet outbreak or as a precaution add 4ml of avid per tank to assist in the knockout. I add the avid in veg to assure I have clean plants going into flower. The Avid has a 30day residual and I don't advise using it in flower. I hope this helps. happy growing!