What is wrong with this apple tree?

Asked June 19, 2019, 3:25 PM EDT

Hello, our client brought in some clippings from his apple tree. He said some of the leaves have these brown spots and they are curling and withering. The tree is about 8 year old, 8-10 feet tall and is located in his backyard. This is the only tree that has the brown spots.

Alpena County Michigan spray schedule for apple trees brown spots on leaves

1 Response

I do not recognize the symptoms. It is not scab so the black spots could be black rot. The brown flower spurs are probably not fire blight but I would need to see more of the tree.

For home apple grower sprays where you need to protect against insects, and diseases I recommend this short resource from the University of Kentucky https://plantpathology.ca.uky.edu/files/ppfs-fr-t-18.pdf

Here is a good resource on home fruit tree care.

https://ag.purdue.edu/hla/pubs/Midwest_Home_Fruit_Production_Guide_940.pdf

They also have a good resource for pest control.https://www.extension.purdue.edu/extmedia/ID/ID-146-W.pdf