I have previously noticed (on a sunny day, when my plants were all still small) a lot of tiny black/gray (maybe even /brown) bugs crawling around on the woodchips in my garden with a seeming flea-like ability to jump very far.
Today (an overcast day with possibility of rain) I noticed a lot of them on the leaves of my young Yukon gold potato plants. I am wondering what these bugs are, if they're harmful, and, if so, how to get rid of them (preferably quickly, effectively, and permanently or at least semi-permanently). My best guess from a quick Google search is flea beetle, but those look too black for the bugs I have in my garden. Image shown below. There are three gray dots near the top of the leaf and one near the middle; these are the bugs. Sorry I didn't have a macro lens to take a better close-up.