There are currently no known solutions to treat cannabis viruses and they should be discarded as soon as possible to prevent the transmission to other plants.
If you have the space, you could quarantine your plants in their early stages.
Prevention: Introduction of viruses is often caused by transfer by pests from infected plants, such as aphids. Preventing infection is easiest by keeping pests out of the grow area.
• Beneficial insects or animals
• Pheromone traps
• Light traps
• Sticky traps
• Chemicals (if necessary)
To prevent transfer of infection strict operating procedures are important as well, like washing scissors/scalpels with hydrogen peroxide when working on a new plant.