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If your Moon Cactus has developed brown spots, it can be concerning. These spots may indicate underlying issues that require attention to keep your plant healthy and vibrant.
Common Causes of Brown Spots on Moon Cactus
Overwatering
One of the most frequent reasons for brown spots is overwatering. Excess water can lead to root rot and fungal infections, which manifest as brown or black spots on the cactus.
Sunburn
Moon Cacti prefer bright, indirect sunlight. Direct exposure to harsh sunlight can cause sunburn, resulting in brown, scorched patches on the plant’s surface.
Pest Infestation
Pests such as scale insects or mealybugs can damage the cactus skin, leading to brown spots. These pests often appear as small, cotton-like or shell-like structures on the cactus.
How to Fix Brown Spots on Your Moon Cactus
Adjust Watering Habits
Allow the soil to dry completely between watering sessions. Use well-draining soil to prevent water from sitting around the roots, reducing the risk of rot.
Provide Proper Lighting
Place your Moon Cactus in a spot with bright, indirect light. If outdoors, shield it from direct sunlight during the hottest parts of the day to prevent sunburn.
Manage Pests
Inspect your cactus regularly for pests. Remove any visible pests manually or treat with insecticidal soap. Ensure good airflow around the plant to discourage pest infestations.
Additional Tips for Healthy Moon Cactus
- Use a cactus-specific, well-draining soil mix.
- Avoid sudden temperature changes.
- Fertilize sparingly during the growing season with a balanced cactus fertilizer.
- Repot your cactus if it outgrows its current container, ensuring the new pot has drainage holes.
By understanding the causes of brown spots and applying these care tips, you can restore your Moon Cactus’s health and enjoy its unique beauty for years to come.