Answer: Based on your description I am not able to tell you specifically what has happened, however I suspect based on the timing that the damage began that it is due to Japanese beetles eating the foliage. At this time of year there is no point to trying to control the damage as the foliage has done its job for the season already and will be falling soon. Also, you need to identify the problem before trying to treat it. You might want to consult with your local county extension to try to obtain a specific identification of the problem and based on knowing that, determine how to proceed for next year. If it is a problem that warrants a chemical control, they will have the most up to date information on what to use and how/when is best to apply it. Good luck with your tree!
Q&A Library Searching Tips