Bonide Copper Fungicide is not specifically labeled for cannabis. We suggest reaching out to your county extension office for advice on what can be used.
You would dilute 2.5 oz. of Bonide Copper Fungicide per 2 gallons of water. Please see the product label for complete application instructions.
Bonide Copper Fungicide should be made in a separate application as directed from your application of the Fruit Tree and Plant Guard product.
Bonide Copper Fungicide can be applied as a dust or spray directly to the plant itself. The directions do not say anything about applying to plant root, only to the leaves. It is not a systemic that is absorbed by plant roots.
Bonide Copper Fungicide does have mums on the label