Bitter rot


Also found in: Encyclopedia.
(Bot.) a disease of apples, caused by the fungus Glæosporium fructigenum.

See also: Rot

References in periodicals archive ?
The biological disorders that cause major damage are the pests [South American fruit fly (Anastrepha fraterculus), the red mite (Panonychus ulmi)] and diseases [apple scab (Venturia inaequalis), bitter rot (Glomerella cingulata) and rotting (Phytophthora cactorum)].
For example, bitter rot was a commercial problem in several Long Island vineyards in 2008, and I hear reports of ripe rot from time to time from southern Pennsylvania up into coastal New England.
One of the most devastating diseases for apples in the summer is bitter rot.
If you haven't done a good job controlling the fungal diseases by bloom, just close up shop and move away, because you will be wiped out by black rot, downy mildew, phomopsis powdery mildew, anthracnose and then the dreaded summer bunch rot complex of bitter rot, ripe rot, sour rot, macrophoma rot (a fungus that affects stems, rachis and berries) and, depending on the temperature, botrytis.