YELLOW LEAVES
Yellowing of the leaves is often due to overwatering or too little light. However, in some cases, yellowing of the leaves can be due to dehydration from overexposure to the sun and high temperatures. Additionally, leaves that turn from yellow to brown may signify disease.
BROWN LEAVES
Leaf browning will occur in ficus triangularis when the plant lacks water or receives too much sunlight. Although enjoying bright light, plants that are not acclimatized may show signs of sun scorching or may undergo browning due to extreme light intensity. However, leaves that suddenly turn yellow, then brown, or brown spots on foliage may signify disease.