Aphids in landscapes and gardens can be managed by a number of different methods, including biological control. Biological control is when naturally occurring beneficial insects, mites, or other organisms (also called natural enemies) reduce a pest's abundance by eating or parasitizing them.
There are numerous natural enemies that are predators or parasites of aphids. Predators such as lady beetles (ladybugs), lacewings, syrphid fly larvae, and soldier beetles all feed on aphids. Very small parasitic wasps lay their eggs inside aphids which eventually kills the aphid host. Check out the video below to see aphid-eating insects in action!
To learn more about other methods of aphid management, see our Pest Notes: Aphids.
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Author - Urban & Community IPM Educator
Author - Associate Director for Urban & Community IPM/ Area Urban IPM Advisor