I'm thinking its Powdery Mildew.....started them in a cold, garage many months ago....but out in the hot summer sun it is still there.....read that a baking soda and water mix will do the trick.....plants are about 4.5 ft tall, just started flower process....over 85% of leaves have the "mildew"...all but the top 6 ".....anyone have success with the baking soda/water spray?

first timer....gardening mom!
iris Reviewed by iris on . Mold or scale? I have 3 nice healthy plants outside, starting to flower....they have a whitish scale or mold that is on the top of the leaves....looks like the leaves are dusty but it doesn't come off? It's been there since they were small and were inside so it didn't just happen when they went out......, and is also on one that I cloned off...as new leaves grow, they too get it.....worried this is the "Mold" that attacks the buds? any ideas?....thanx.... Rating: 5