Why are there many ants on Lagerstroemia indica?

There are many ants on Lagerstroemia indica, because it secretes a juice that attracts ants. This juice is the food source of ants, so they will be attracted to Lagerstroemia indica. In addition, ants and aphids have a * * relationship, aphids suck leaf juice, excrete honey dew and other liquids, which is a good meal for ants. So ants climb trees, not only to climb, but also to find food.