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Stopping Mint in Its Tracks. By Scott Aker. August 20, 2008 at 8:00 p.m. EDT. Q I have an herb bed that is being overrun by mint. What was one small plant now occupies a third of the bed.
“If you spot powdery mildew right away, you may be able to wash the spores off with a stiff blast from the hose.” Be sure to do this early in the day so the plant has time to dry off in the sun.
Willamette Valley Vineyards is the first in the world to use a robot to apply ultraviolet-C (UV-C) light to fight powdery mildew, an ongoing threat to vineyards, gardens, and other plants around ...