Brown spots in apples - Ask Extension
The house we moved into last year has a huge apple tree. And if I'm patient enough to let them ripen they are sweet enough for fresh eating. I conside...
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Brown spots in apples #289671
Asked November 10, 2015, 1:06 PM EST
The house we moved into last year has a huge apple tree. And if I'm patient enough to let them ripen they are sweet enough for fresh eating. I consider that a huge score! The largest fruit is up high and relatively blemish free. The smaller apples lower down often have the dimples shown in the photo and when cut open a brown spot right at the dimple. Asian beetles are a big problem in my yard (I attached a photo of what they did to my brussel sprouts for a bit of comedic value). Could it be the beetles or something to do with when the fruit forms. Lastly, can I cut out the spots and use them for applesauce or pies? Any and all ideas appreciated. Thanks!
Dakota County Minnesota
Expert Response
Hi,
This looks like the work of apple maggots. I am attaching info from the U about the pest and ways to control. http://www.extension.umn.edu/garden/yard-garden/fruit/apple-pest-management/maggot/
Hi again,
Another Master Gardener has suggested that your apple problem might be bitter pit (a calcium deficiency) rather than apple maggot. Here is some information. See what you think: http://www.science.oregonstate.edu/bpp/Plant_Clinic/images/apple_bitterpit.htm
For control of bitter pit, see this information from OSU: http://ohioline.osu.edu/hyg-fact/1000/1403.html