brown rot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several plant diseases, especially a disease of peach, plum, and related plants caused by the fungus Monilinia fructicola, characterized by wilting of the flowers and rotting of the fruits.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A fungal disease of stone fruit such as peaches and nectarines, caused by the fungus Monilinia fructicola

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any of certain fungous diseases of plants characterized by browning and decay of tissues