09/24: I had noticed powdery mildew on both the True OG (few leaves, mild growth) and OBW (few sections had to get cut, growth was more severe on inside of some buds). Did some light defoliation and trimming. The PM was coming from my bee balm plant and it was located close to some of my autos, the OBW and the Do-si (did not show any signs of PM).
09/27: PM was still present on both (again less on True OG). Treated twice (one day apart) with a 1:9 3% peroxide solution and sprayed the leaves.
10/03: No PM found on either the True OG or OBW anymore. Love the colours on the Do-si-do and she seems like she's going to be harvested last.
Been just giving water and flushing since 09/23.