I have these beautiful holly bushes planted in my garden for about eight years. Something very peculiar has been happenin for the last two years, the bushe are fill with flies! Maybe I never noticed this phenomenon before, but I think it was never like that. Although the plants have some yellowing leaves, for most part it looks green and healthy; and have been flowering nicely. I wonder if flies are attracted to the Hollies' flowers nectar, but then again, I think I never saw this happening before? Could you, please, be so kind to help me solve this puzzle?
I will truly appreciate it
Thanks a million!!