bugs eating my mint
I am growing mint outside and am getting a bit frustrated. Bugs seem to be eating it up faster than it grows. They first chew holes in each of the leaves and then completely ingest the leaves. I cringe everytime I go outside in the morning because I know more leaves will be gone.
When I look closely at the leaves, I see little black balls on the leaves (possibly excrement from the feeding frenzy?).
I went to my local plant store and they suggested I use an organic insecticide (Pharma Form?). I tried using that on one of the plants and it killed it pretty quickly. My neighbor suggested I use soap (dishwashing soap), diluted by water. I diluted it about 10:1. It seems to be helping a little (I spray 2-4 times per week) but definitely not getting rid of the bugs. Leaves grow a little longer now before they get destroyed.
In the meantime, bugs aren't eating any of my neighbors herbs, which are less than 3 feet away.
Any suggestions would be extremely appreciated.