Brown spots and holes on leaves on my mint and basil plants
I bought and planted some herbs in pots that I keep on my porch about 2 weeks ago. I am starting to see holes and brown spots on all of my plants: peppermint, spearmint, and basil. I have looked up a lot of information and pictures about what potentially might be causing the issue, but have not been able to figure out if it is an insect, slugs, or some kind of fungus. I have not yet been out at night to see if there are slugs or beetles on the plants, but I have not seen traces of slugs in the mornings.
The mint plants still have lots of healthy looking leaves, but the Sweet Basil plant has taken a real beating.
I sprayed the plants with insecticidal soap a few days ago, but am not sure if it is working.
Any advise would be greatly appreciated.