Why are your guava leaves curling and turning brown?

Curling and browning guava leaves can indicate several issues, primarily environmental stress or pest infestations. Overexposure to direct sunlight, inadequate watering, or nutrient deficiencies can lead to leaf damage. Additionally, pests like spider mites or aphids may cause leaves to curl as they feed on the plant. Assessing the plant's conditions and checking for pests can help identify the cause and guide appropriate remedies.