Sprayed Roses with Mancozeb and Drenched Knockout with H2O2
7/13/2021 – The oldest knockout on the west side of the front porch has a cane with wilting leaves like the former rose behind it had. We are concerned that it is again root rot as discussed here. Poured 1.5 gallons of 3:1 water to hydrogen peroxide all around the rose stump out about 18″ from […]
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