The image appears to show leaf spots, which are commonly caused by fungal or bacterial infections such as Leaf Septoria or Bacterial Leaf Spot. Here’s how to treat it: Steps for Treatment 1. Remove Affected Leaves • Prune and dispose of infected leaves to prevent the disease from spreading. Do not compost them. 2. Improve Airflow • Space out plants and trim dense foliage to improve airflow around the leaves. 3. Reduce Humidity • Keep the growing area’s humidity between 40-60%. Use a dehumidifier if necessary. 4. Apply Fungicides (If Fungal) • Use an organic fungicide like copper-based fungicide or neem oil. Spray in the early morning or late evening. 5. Apply Bactericides (If Bacterial) • Use a copper-based bactericide. Follow the manufacturer’s instructions for dilution and application. 6. Water Properly • Avoid overhead watering; water at the base of the plant to keep foliage dry. 7. Maintain Clean Growing Conditions • Sterilize tools and keep the growing area free of plant debris. 8. Prevent Future Outbreaks • Rotate crops and avoid replanting marijuana in the same infected soil. Use resistant strains when available. Follow-Up Monitor the plant regularly for new spots. If the infection persists, you may need to reapply treatment or consider stronger control measures. If you suspect a specific pathogen (e.g., Leaf Septoria), let me know, and I can provide a more tailored approach!