spray it with milk....... 70% milk 30% water mixed do not spray in full direct sunshine doesn't matter if it's whole milk or low fat as long as it is not lactose free spray all over, under/over leaves all stems dunk any flowers in plastic bowl of milk to cover the whole thing
If you catch it early try plain milk. Spray under leaves as well. If it is spreading, cut off leaves that are badly affected and wash utensils. Purchase a spray at garden center that is made for it. There are several brands you can get at Home Depot.
I have used Dawn mixed with water in my spray attachment for my hose.
Will try all suggestions-ty