There are several eco-friendly options depending on the ant species and infestation size: Natural repellents: Sprinkle cinnamon, diatomaceous earth, coffee grounds, or citrus peels around the plants. Soapy water: Mix dish soap with water in a spray bottle and target ant trails directly. Use sparingly to avoid harming plants. Boiling water (caution): Pour boiling water directly into the anthill (only safe for outdoor, well-established plants). Repeat at intervals while observing plant health. Boric acid bait: Mix boric acid with sugar and water, and place small amounts near ant trails. Workers take it back to the nest, poisoning the colony. Beneficial insects: Introduce parasitic nematodes or lacewings, natural predators that target ants.