Apple problem - Ask Extension
Several of our apples have this problem - they look just fine but when we cut them open the seed core is bad. It does not affect the flavor and hasn'...
Knowledgebase
Apple problem #816556
Asked November 16, 2022, 4:00 PM EST
Several of our apples have this problem - they look just fine but when we cut them open the seed core is bad. It does not affect the flavor and hasn't spread (yet).
What is causing this and can we prevent it?
Clay County Minnesota
Expert Response
It is possible that this is moldy core, which is caused by a type of fungus. Some types of apples are more susceptible to this. Certain weather conditions can have an impact and may make this type of fungal infection more likely. Some manage the issue by using fungicides.
Compare what you are seeing with the reference websites listed below.
https://www.canr.msu.edu/ipm/diseases/moldy_core_and_core_rot
https://pnwhandbooks.org/plantdisease/host-disease/apple-malus-spp-moldy-core-core-rots
https://extension.psu.edu/apple-disease-moldy-core
Compare what you are seeing with the reference websites listed below.
https://www.canr.msu.edu/ipm/diseases/moldy_core_and_core_rot
https://pnwhandbooks.org/plantdisease/host-disease/apple-malus-spp-moldy-core-core-rots
https://extension.psu.edu/apple-disease-moldy-core
