Dave from Upton, Ma writes
Researching Black Knot I found recommendations to use 3336F on my ornamental cherry tree so I purchased some. There is nothing I could find in the paperwork to tell me timing and dosage recommendations.
Clearys 3336F does not mention Black Knot Fungus on the label as a disease controlled by it. For additional information, we would recommend you speak to the manufacturer at 800-524-1662.
Answer last updated on: 04/09/2020
