Spray aphids off plants with a strong stream of water
Remove heavily infested leaves or stems
Pinch off small clusters of aphids by hand
Apply insecticidal soap to affected plants
Use neem oil on infested areas
Introduce ladybugs or lacewings
Plant aphid-repelling companions such as marigolds, chives, or garlic
Avoid over-fertilizing with nitrogen
Control ants that protect aphids
Check plants regularly and repeat treatment as needed