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Moldy Core and Core Rots

Several different

12 host plants

Last updated

Data Coverage 3 of 6 dimensions
Causal Agent
Host Plants
Symptoms
Management
GDD Threshold
Regional Notes

Apple cores show fungal growth (Alternaria, Penicillium) in the locules, visible when cut open. Mild temperatures and wet bloom favor disease on open-sinus cultivars like Delicious and Golden Delicious. Use scab fungicides during bloom, harvest at proper maturity, and avoid dump tanks for susceptible cultivars.

Fungicides used for scab and powdery mildew during bloom generally keep these diseases in check. Harvest fruit at the correct stage of maturity.

Quick Reference

Causal Agent
Several different
Host Plants
12

Management

Cultural Controls

  • Fungicides used for scab and powdery mildew during bloom generally keep these diseases in check.
  • Harvest fruit at the correct stage of maturity.
  • Do not submerge susceptible cultivars in a dump tank prior to storage.
  • Reference Elfar, K., Zoffoli, J.P., and Latorre, B.A. 2018.
  • Identification and characterization of Alternaria species associated with moldy core of apple in Chile.
  • Plant Disease 102:2158-2169.

Host Plants (12)