Oh yes! Am well familiar with this condition! I have a greenhouse and mildew just loves my zucchini and cuke plants but also loves green beans! My basil is just fine. I cut off the leaves affected and discard. Outside of that no clue how to prevent because I have drip lines,, mulch, lots of sun and temp controls. Oh well….will just keep plodding along!
Oh yes! Am well familiar with this condition! I have a greenhouse and mildew just loves my zucchini and cuke plants but also loves green beans! My basil is just fine. I cut off the leaves affected and discard. Outside of that no clue how to prevent because I have drip lines,, mulch, lots of sun and temp controls. Oh well….will just keep plodding along!