Answer: Ants are attracted to citrus trees either because the flowers are exuding sweet nectar or your trees have a population of aphids (whiteflies or scale insects). Aphids suck the juices out of plant tissues and excrete a sweet substance called honeydew. Ants herd and protect aphids because they know they are a source of honeydew, something they enjoy eating and taking back to their nests. To rid your trees of ants, you'll need to rid your trees of sucking insect pests. If there are no insects, the ants are stealing the nectar from the flowers. You can place a sticky barrier around the trunks of your trees to stop ants from invading them. Or use ant baits at the base of the tree.
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