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Prune >Year-Round IPM Program > Fruit Development > Brown Rot Damage on Fruit

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Prune

Brown Rot Damage on Fruit

Names link to more information on identification and management.

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Quiescent (dormant) brown rot infections on immature prunes.
Brown rot on fruit
Identification tip:
Brown rot first appears as small dark spots on the fruit surface.

Sporulation on the surface of a fruit infected with Monilinia fructicola.
Brown rot on fruit
Identification tip:
Dark brown discoloration spreads rapidly, and grayish-brown tufts of spores develop on the surface of the rotted area.

Gummy exudate and brown rot-infected fruit.
Brown rot on fruit
Identification tip:
Occasionally, a gummy exudate is also visible.

Statewide IPM Program, Agriculture and Natural Resources, University of California
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