If it is a type of PM it will work on trying to get through the upper cells where it feeds. The types I battle with seem to be non-systemic,and are a type that can't get deep into the tissue like botrytis. From there it spores out and spreads. I'd watch them carefully and prepare to observe any changes that take place overnight. PM can spread like mad in a few dark hours.
If it was a type of PM,chances are that the baking soda worked. However,if there were spores you now have spores hanging out waiting for the chance to find a spot to grow.
It's best to remove infected leaves carefully and with no air movement so you don't spread spores. Treat the whole plant with whatever organic method you've chosen. Under the leaves,on the stems,even the surface of the soil.
Organic treatments are typically only good for the existing growth,as new leaves come out they are targets for attack from that stray spore. Reapply treatment as new growth appears for at least a couple weeks. Spray the walls,floor,ceiling,fans,pots,everything.
Simple light foliars with Dyna-Gro Pro-Tekt work great on new growth as a preventative control. It must change the ph of the leaf surface as well as supply the cells with silicone for building stronger cell walls.....which is of course because silicone is one of major building blocks for strong cell walls....which then can better resist attack.
If it was a type of PM,chances are that the baking soda worked. However,if there were spores you now have spores hanging out waiting for the chance to find a spot to grow.
It's best to remove infected leaves carefully and with no air movement so you don't spread spores. Treat the whole plant with whatever organic method you've chosen. Under the leaves,on the stems,even the surface of the soil.
Organic treatments are typically only good for the existing growth,as new leaves come out they are targets for attack from that stray spore. Reapply treatment as new growth appears for at least a couple weeks. Spray the walls,floor,ceiling,fans,pots,everything.
Simple light foliars with Dyna-Gro Pro-Tekt work great on new growth as a preventative control. It must change the ph of the leaf surface as well as supply the cells with silicone for building stronger cell walls.....which is of course because silicone is one of major building blocks for strong cell walls....which then can better resist attack.