Mary from Incline Village, Nv writes
WE HAVE ABOUT 15 --3 YRS OLD ASPEN TREES THAT LST YEAR HAD POWDERY MILDEW AND THIS YEAR LEAVES AND TRUNKS HAVE BLACK SPOT--WE LOVE THESE TREES AND WANT TO SAVE THEM-HOW MUCH TO WATER? WE LIVE IN LAKE TAHOE, NV
You will use 3/4 fl. oz. of the solution per gallon of water. Apply every 7-14 days for a total of 3 applications beginning at the first sign of disease.
Answer last updated on: 06/05/2014