How do you get ants off a dwarf peach tree?

In order to repel ants from a fruit producing tree, your best solution is to catch them on there way up the trunk. A great way to do this is to stick a piece of paper to the trunk with a sticky substance on it, such as petroleum jelly. They also sell products specifically for trapping ants. This will not allow the ants to make it to the branches where the fruit is being produced.