Strange Apple Interior

Asked October 23, 2014, 5:10 PM EDT

The King David apples I bought from an apple festival all had weird interiors and I want to know what it was and what caused it (because some of the apples I grew did the same thing). They look perfectly ripe on the outside, but inside they had areas that were a couple shades greener than the rest of the apple, and these greener areas were somewhat translucent. My husband tasted one for me and said it tasted the same as the rest of the apple but was a lot firmer, so we decided to go ahead with the applesauce. But what is it and how can I prevent it organically from happening again?

Clackamas County Oregon

3 Responses

Thank you for your question to Ask an Expert.

The symptoms that you describe are not consistent with common cultural and disease problems of apples from these various resources:

The one problem with somewhat similar symptoms is boron deficiency:
Does this match with your observations?

If yes, then you can apply boron next growing season. The problem with boron is that a little goes a long way. Just the right amount, evenly applied, is very helpful, but too much and you have an herbicide (soil sterilant) that will kill plants. Safe borax application rates would be one-half teaspoon per a 4’ x 8’ bed (32 square feet). Dissolve it in a gallon of water and sprinkle it evenly over the root area once a year.

If the boron deficiency does not match your observations, then you could look at the details in the links above to see if you find anything that more closely matches what you are seeing.

Please let me know if you have any more questions.


Nope- that wasn't it, but I did bookmark these pages for future reference, so thank you for that.

If I run across it again I'll be sure to take a picture of it.

thanks anyway.


Another Expert has provided insight into your apple question. It might be "apple water core."


Does that accurately diagnose the problem and provide you with ideas for control?

Please let me know if you have any further questions.