Bitter rot

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(Bot.) a disease of apples, caused by the fungus Glæosporium fructigenum.

See also: Rot

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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)].
Bitter rot, ripe rot--Two non-Botrytis rots that growers in more southerly climes face on a regular basis, these may be more common than we've traditionally appreciated to the north of these regions.
One of the most devastating diseases for apples in the summer is bitter rot. Periods of hot and humid weather are perfect conditions for bitter rot, which is caused by the fungus Glomerella cingulata.
During July we jokingly refer to Missouri as "Misery." 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.