Do the leaves still look capable of photosynthesis?  Would you say that you’re looking at “an acceptable level of damage?”  If so, there isn’t a rush to treat, especially if what has caused the holes has come and gone. Mark some of the foliage that is without holes with a soft piece of yarn or twist-em, and watch those leaves over a few days. If the damage isn’t continuing, there is no need to worry. Remember that fungi and insects are most often “host specific,” meaning that what you’re seeing isn’t going to spread to every plant in your garden. 

A photo of my bird-and-fragrance garden in June.