There are a few pests that could be causing this sort of damage. The most common is undoubtedly the Japanese beetle, though their population tends to peak in early to mid-summer. They are tough to beat, but they should begin dying off as fall approaches. In any case, look into purchasing a horticultural oil or neem oil, both of which will be effective against most insect pests. Follow the instructions on the packaging; you will likely need to reapply the oils every few days.
There are a few pests that could be causing this sort of damage. The most common is undoubtedly the Japanese beetle, though their population tends to peak in early to mid-summer. They are tough to beat, but they should begin dying off as fall approaches. In any case, look into purchasing a horticultural oil or neem oil, both of which will be effective against most insect pests. Follow the instructions on the packaging; you will likely need to reapply the oils every few days.