Answer: Aphids can cause curling shriveled leaves as they feed on the fluids between the tissues of the leaves. As they feed they exude a sticky substance called honeydew. This honeydew attracts ants. So if you control the insect population, the ants will lunch elsewhere. Citrus trees can be sensitive to insecticidal soap sprays, which are considered the first line of defense against aphids so you may just want to hose the pests off the leaves of your lemon tree. A strong stream of water will dislodge them and will also rinse off the honeydew. Repeat as often as necessary. Best wishes with your lemon tree.
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