Anthracnose - a disease that most often exposed to palm trees and rubber plants. On leaves of affected plants appear dark spots, and at the ends of the leaves may appear dark brown streaks. Contributes to the development of the disease warm and humid conditions, so most often affects the plants in greenhouses, not in the rooms. Control measures. Removal and burning of sick leaves. Treatment of systemic fungicide. Decrease watering, aeration, the removal of spray for a few weeks.