Anthurium dropping leaves can be caused by a variety of factors, including improper watering, lighting, temperature, or pest infestation. Here's a detailed guide on why your Anthurium is dropping leaves and how to solve it:

1. Improper Watering Overwatering or underwatering can cause Anthurium leaves to wilt and drop. Ensure that the soil is evenly moist but not waterlogged. Water the plant when the top inch of soil feels dry to the touch, and avoid letting the plant sit in standing water.

2. Lighting Anthuriums require bright, indirect light to thrive. Insufficient light can cause the leaves to droop and fall off. Place the plant near a window with filtered light or use a grow light to provide the necessary light.

3. Temperature Anthuriums prefer warm temperatures between 65°F and 80°F. Exposing the plant to temperatures below 60°F can cause damage to the leaves and lead to leaf drop.

4. Pest Infestation Pests such as spider mites or mealybugs can infest Anthurium plants and cause the leaves to wilt and fall off. Inspect the plant regularly and treat any pest infestations with insecticidal soap or neem oil.

5. Pot Bound Anthuriums require adequate space for root growth. If the plant has outgrown its pot, it may drop leaves. Repot the plant into a larger pot to provide more space for growth.

6. Disease Diseases such as fungal infections or bacterial infections can cause Anthurium leaves to wilt and drop. Ensure that the plant has good air circulation and avoid overwatering. Treat any infections with appropriate fungicides or bactericides.

In summary, Anthurium dropping leaves can be caused by a variety of factors. Ensure that the plant is receiving adequate water, light, and temperature, and watch for pest infestations or disease. By providing the appropriate care and addressing any issues promptly, you can help your Anthurium recover and prevent further leaf drop.