Eagle 20 is the way to go for PM. a cheaper alternative with the same active ingredient Is called immunox it's available at lowes. Make sure not to get immunox plus it has an added pesticide not safe for consumption. Ive used it with great success, I used the concentration and directed for tomatoes as a foliar and a dip for clones. I couldn't tell for sure by the picture if u have pm, but in a dome the smell will be the dead giveaway. I remember looking forward to smelling my babies every day in the dome until I got PM, and it was distinct and mildewy. The smell showed up a day before the actual powder for me. Cntact foliars like hot pepper, and h202 were worthless, if u are sure it's pm, dip the babies roots and all, they will love u for it.