maybe b it s the soap i used a bit of sun light dish soap.. not dawn .. very little.. maybe nexts spray i try onlyI've seen a few white spots sometimes (never yellow ones) but it doesn't seem to bother the plant at all. Could be just a bit of undissolved citric acid in that area.
7 grams per liter instead of the 10g/l i used here of citric acid anhydride ...
thanks shed..