I discovered the nectarine below with some small black ants eating the raw flesh. I'm trying to work out if the ants ate through the skin and are the sole cause or if this was started by a bird or a different insect. I guess that my question is: Can this type of ant eat through the skin of a nectarine and are they the pest that needs to be controlled or is it something else?
Location: Phoenix, AZ
Fruit/tree: Arctic Star Nectarine