Honeycrisp apples decaying quickly in storage - brown/rotten in the flesh
This year my Honeycrisp apples decayed in storage. This was after only a few weeks in the fridge. Usually I keep my honeycrisp apples for up to 10 months without this problem. There is little or no evidence on the outside even though it is all over in the flesh.
I spray during the year with captan, imidan, some Topsin-M for control of fly spec and sooty blotch. And this year for the first time I applied some Chlorine hoping to control of what I thought might be bitter rot damage of the previous few years. Please see attached pic.
Summit County Ohio
Thank you for your question for eXtension. I am not a post harvest Specialist therefore I have reassigned your question to our Tree Fruit Specialist Dr. Diane Miller. Her contact information is email@example.com and her phone is 330-263-3824 she is located on the OSU Wooster campus. She should be able to assist.
Thanks for the good pictures. Honeycrisp is a difficult apple to grow right. You have solved the outer fruit rot issues with your spray program. Now you've come up with an internal breakdown problem. What you have going is called 'soggy breakdown'. It's a problem because you can't see it from the outside. Likely, this is how it occurred and how you can avoid it next year: It occurs from putting the fruit into the cooler right after harvest. It can be avoided by harvesting the fruit and letting them sit at orchard temperatures for a few days (up to a week), then put the fruit into the cooler. Apparently that outside post-harvest equilibration will reduce the acidity enough in the fruit so that you don't get the internal soggy breakdown. As already mentioned, Honeycrisp is difficult to get right. The more fruit on the tree, the less likely you will see this problem, I believe. Fruit from younger trees are more prone to soggy breakdown. Anyway, next year keep up your spray program and also let the fruit sit outside for a few days after harvest.