A COMPENDIUM OF TROPICAL PLANT DISEASES AND DISORDERS
ANTHRACNOSE
SYMPTOMS
Leaf spots tan to dark brown, circular and sunken containing dark brown to black fruiting bodies Fruiting bodies often form in concentric rings appearing as a bull’s eye target on the upper surface of leaves Symptoms differ by host including needle necrosis, blights, dieback, cutting rot and stem rot
Anthracnose diseases of tropical plants are caused by a variety of fungi including Colletotrichum, Gloeosporium and Glomerella . They are common on some crops grown in greenhouses, nurseries and are often found in many landscapes. Anthracnose diseases can start in propagation where they present as leaf spots and sometime cutting death. Unfortunately, if they are present in propagation they usually carry through and cause losses throughout the remainder of the production cycle, even showing symptoms as long as 2-3 years after the cutting was rooted.
FAVORABLE CONDITIONS
Overhead irrigation or exposure to rainfall
Long periods of high relative humidity and warm temperatures
Mechanical damage or wounding and poor air circulation
AGLAONEMA ANTHRACNOSE
CACTUS ANTHRACNOSE
DRACAENA ANTHRACNOSE
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YUCCA ANTHRACNOSE
HEDERA ANTHRACNOSE PHILODENDRON ANTHRACNOSE
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