Help - Crabapple tree problem
I am hoping someone can help me with my crabapple tree. I have had it for about 6-7 years, it is growing very well, but have an issue with the crabapples themselves. It seems to be loaded with apples every second year, but they are no good Every apple has holes in it, like a worm is eating them possibly. I have never sprayed or treated it in any way as I am not sure what to use how or when to do it. I have found articles for treating different diseases problems, but not this exactly. Any thoughts or ideas?? Thanks so much!