Description: Prevent leaf spots by improving air circulation, reducing humidity levels, and using appropriate fungicides or bactericides. Causes: Leaf spots on Plumeria leaves can be caused by excessive moisture and pathogenic infections. Solutions: Improve air circulation: Ensure good air movement around the plants to reduce humidity levels and discourage pathogen development. Adjust watering practices: Avoid overwatering and allow the soil to dry out between waterings to prevent prolonged leaf wetness. Apply chemical treatments: Use appropriate fungicides or bactericides as preventive measures to control leaf spot-causing pathogens. Monitor the leaves: Regularly inspect the leaves for any signs of spots or infections and take prompt action if necessary.