Outdoor Marijuana and Canna Rust

Canna rust is a fungal disease that can affect the outdoor marijuana crop, this disease can cause orange spots on the leaves of the marijuana plant. The leaves once discolored will begin to turn a brown or black in color.

This is a fungus disease that can also affect the stem of the outdoor marijuana plant. Once the leaves have been affected by canna rust they will eventually fall off of the stem. When the outdoor marijuana grower sees the orange spots that are the marks of canna rust they need to remove the leaves that have been affected or canna rust can spread. If the fungus disease is not treated by the grower it will continue to affect the other plants in the outdoor marijuana crop and the plants will die.