What Do Hoverflies Eat and What Eats Them?
Hoverflies are one of the easiest beneficial insects to spot in a garden, and the answer to what do hoverflies eat is part of why they matter so much. The adults feed on nectar and pollen, which makes them important pollinators, while many of their larvae eat soft bodied pests like aphids. If you are seeing them near flowers, compost, or aphid clusters, they are working for your garden in more than one way.
What Adult Hoverflies Eat
Adult hoverflies feed on nectar and pollen. They need sugary nectar for energy and pollen for protein, which supports movement, mating, and egg production. This is why hoverflies stay close to blooms and are so common in gardens with shallow, open flowers. They do not bite people, sting, or chew leaves, and they do not feed on wood or stored food inside homes.
Best Flowers for Adult Hoverflies
Hoverflies favor flowers they can land on easily and feed from with short mouthparts. Flat clusters and tiny open blooms work best, especially:
- Sweet alyssum
- Dill
- Fennel
- Parsley left to flower
- Cilantro left to flower
- Yarrow
- Queen Anne’s lace
- Calendula
- Coreopsis
Planting a mix of these keeps nectar available over a longer season. Leave some flowers to bloom fully instead of cutting every stem for harvest.
What Hoverfly Larvae Eat
Hoverfly larvae eat a very different diet from the adults. Many species are predators, and the larvae feed on aphids, thrips, small caterpillars, and insect eggs. A single larva can consume dozens of aphids before pupating. That makes hoverflies valuable garden allies, especially on roses, peppers, beans, and tender leafy plants where aphids gather.
How to Recognize Hoverfly Larvae While They Feed
Hoverfly larvae are not shaped like caterpillars. They look like small, smooth, legless maggots, often green, brown, or translucent. You will find them on leaves, stems, and in aphid colonies, where they move slowly and grab prey with mouth hooks. If you see a tiny, wormlike larva near aphids, do not remove it before checking carefully, because it is likely doing pest control work for you.
Do Hoverflies Eat Pollen, Honey, or Plant Leaves?
Adults eat pollen and nectar, not leaves. They do not chew holes in plants, strip seedlings, or raid pantry items. They also do not eat honey in the way bees do, although they may visit sugary liquids in nature if nectar is available. Their diet is tied to flowering plants, which makes them one of the easiest beneficial insects to support with a pollinator friendly garden.
What They Do Not Eat
- They do not eat wood
- They do not eat fabric
- They do not eat stored grains
- They do not eat house food waste indoors
- They do not feed on human blood
What Eats Hoverflies?
Birds eat hoverflies, especially small insect eating birds that hunt in flowers and open garden spaces. Spiders also catch them in webs, and larger predatory insects eat both the adults and larvae. Dragonflies, praying mantises, robber flies, and some wasps prey on hoverflies. Birds, spiders, and predatory insects all help keep hoverfly numbers in balance in the landscape.
Which Life Stage Is Most Vulnerable
Hoverfly eggs and larvae face the heaviest pressure. Eggs are small and exposed on leaves near aphid colonies. Larvae are vulnerable to predatory insects, birds, and spiders, and they can be lost if aphids are removed too aggressively from the garden. Pupae are hidden in sheltered spots such as leaf litter or plant debris, where they are safer but still not protected from ground hunting predators.
Hoverfly Behavior, Senses, and Garden Role
Hoverflies hover in place, dart quickly from flower to flower, and can inspect blossoms with remarkable precision. Their large compound eyes help them track movement, and their antennae help them locate flowers and suitable egg laying sites. Adults are active in daylight, and many species move through multiple generations during the warm season. Some species migrate long distances, which is why hoverflies can appear suddenly in large numbers.
Why Gardeners Should Welcome Them
Hoverflies do two jobs at once, pollination and pest control. Adults move pollen between flowers, and larvae reduce aphid pressure without sprays. If you want more of them, grow flowering herbs, avoid broad garden cleanups in peak season, and keep a few aphid infested plants under observation rather than reaching for a spray bottle right away.
How to Attract Hoverflies and Support Their Life Cycle
The simplest way to attract hoverflies is to provide nectar, pollen, and aphid rich habitat in the same yard. You do not need chemicals or traps. A balanced planting plan gives adults food and gives larvae a place to hunt.
- Plant at least three bloom types that open at different times, such as sweet alyssum, dill, and yarrow.
- Let some herbs bolt and flower, especially parsley, cilantro, and fennel.
- Keep a few shallow water sources nearby, such as a pebble filled dish.
- Leave small patches of leaf litter or stems at the edge of the garden for pupation sites.
- Avoid broad insecticides, even natural sprays, on flowering plants that hoverflies visit.
If aphids appear on one plant, wait and watch before intervening. Hoverfly larvae, ladybugs, lacewings, and parasitic wasps may arrive on their own and reduce the infestation.
Natural Ways to Work With Hoverflies in a Garden
Hoverflies fit best into a low spray, insect friendly garden. Companion planting with flowering herbs and small blooms keeps them visiting beds, borders, and vegetable rows. Use exclusion and hand removal for pests only where needed, and reserve diatomaceous earth for dry cracks, paths, or target spots away from flowers, since it harms all soft bodied insects it touches. For aphids, a strong water spray on a stubborn cluster is safer than treating the whole yard.
Essential oils do not belong on flowers that attract hoverflies. If you use any scented deterrent near entryways or patio edges, keep it away from pollinator plants and apply it only to non blooming surfaces where pests travel. The goal is to protect plants without erasing the insects that pollinate them and suppress pest outbreaks.