Disease	Symptoms	Pathogen/Cause	Management
Anthracnose	Greasy-appearing spots yellow and then die and have a yellow halo.	Colletotrichum	Avoid overhead watering. Apply mancozeb to protect healthy leaves.
Bacterial Leaf Spot Ficus benjamina	Angular yellow spots are limited in size by veins. Spots become brown and leaves fall.	Xanthomonas campestris	Purchase plants free of the disease. Avoid overhead watering.
Branch Dieback Ficus benjamina	Leaves wilt, die, and fall. Small and eventually large branches die. Wood under the bark is black.	Phomopsis	Maintain even soil moisture. Prune branches when they are small. Protect plants from injury.
Cold Injury Ficus elastica	Mature leaves have large brown blotches. Young leaves appear puckered or distorted and brown.	Temperatures below 40°F.	Management: Do not place plants near air conditioners. Maintain temperatures above 40°F.
Foliar Nematode Ficus elastica	Areas between the leaf veins yellow and die.	Aphelenchoides	Discard infected plants. Remove infected leaves from plants not severely affected and avoid overhead watering.
Leaf Drop Ficus benjamina	Leaves yellow and fall.	Low soil moisture and low relative humidity	Maintain even soil moisture.

Fungicides mentioned above:

COMMON NAME	TRADE NAME
mancozeb	Dithane
PCNB	Terraclor