Extension > Garden > Diagnose a problem > What's wrong with my plant? > Fruit > Raspberry > Discolored or rotten berries
Raspberry > Fruit > Discolored or rotten berries
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Gray Mold
Botrytis cinerea
- Infected fruit may remain attached as shriveled, dried, black “mummies”
- Flowers are brown to black and dry out
- Gray powdery spores cover part or all of the infected fruit under moist conditions
- Disease favored by wet conditions and temperatures between 41-86° F
- Light brown oval lesions form on canes where the leaves attach, and faded brown concentric circles are often visible within the lesion
- More information on Gray Mold
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Spotted Winged Drosophila
Drosophila Suzukii
- Active in gardens from July to September
- Larvae feed on healthy, intact, ripening fruits
- Larvae feed within the berries causing brown, sunken areas
- Fruit becomes soft and decays
- Adult flies are small (1/8 - 1/12 inch) long, yellowish-brown and red eyes, larvae are small (1/8” long), white and cylindrical
- More information on Spotted Winged Drosophila
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Sunscald
- Individual raspberry drupelets are white
- More common in dry conditions
- More information on Sunscald
