Red Ants & black aphids

Red Ants & black aphids

Observation - Red Ants & black aphids. Description: I'm curious about what was going on here more than trying to make a specific id. The red ants seemed to be interacting with the small black aphids - there were five or six patches on the same dock plant like this. Interested if anyone can shed any light

I'm curious about what was going on here more than trying to make a specific id. The red ants seemed to be interacting with the small black aphids - there were five or six patches on the same dock plant like this. Interested if anyone can shed any light on this.