Mealy, Mushy Peaches? Check for Caribbean Fruit Fly Larvae

Your 8-year-old Bonanza peach tree produced great fruit in past years, but this season's crop is disappointingly mealy. Before blaming weather or variety, inspect the fruit closely.

The Hidden Culprit

Caribbean fruit fly larvae are the most common cause of mushy, mealy peaches in warm climates. The female lays eggs in ripening fruit; hatching larvae feed on the flesh, creating a fermented, mushy texture.

How to Confirm

• Cut open affected peaches—look for tiny white larvae (maggots) inside.
• Check for small puncture holes or dimples on the fruit skin.
• Note if fruit ripens unevenly or drops prematurely.

Control Measures

• Sanitation is critical: Pick up and destroy ALL fallen fruit daily.
• Trapping: Use protein bait traps or pheromone traps.
• Protective sprays: Apply spinosad or kaolin clay when fruit begins to color.
• Bagging: Cover individual fruit with fine mesh bags.

Overripe fruit can also become mealy, but if the texture is "off" before full ripeness, fruit fly is the prime suspect. Consistent sanitation breaks the cycle for next year.