Autumn: nests dying off

Field guide · 2 min read

The wasp life cycle

A queen begins a nest in spring. Workers build the colony through summer. New queens leave later in the year, and the old colony declines. Wasp colonies do not reuse an old nest the following year.

Understanding how a wasp colony lives and dies explains a lot: why you only notice nests in summer, why they get worse in autumn, and why last year’s nest is nothing to worry about.

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Winter

Old nests are empty

Queens hibernate. Last year’s nest will not be reused. An empty nest does not need treatment.

Wasp season guide

Spring

Queens start building

Queens start small paper nests in sheltered places. Watch for repeated visits to sheds and roof gaps.

Wasp season guide

Summer

Nests grow and traffic builds

Workers travel in and out of the entrance. Keep your distance and leave the entrance open.

Wasp season guide

Early autumn

Active nests can still sting

Wasps visit sweet food and drinks. A nest with regular traffic can still need treatment.

Wasp season guide

Late autumn · current season · selected

Colonies wind down

New queens leave and colonies decline as the weather cools. Call us if you are unsure whether your nest is still active.

Wasp season guide

Winter: the queen hibernates

Only new, mated queens survive the winter. They tuck themselves into sheds, lofts, log piles and gaps in bark. Everything else from the old colony has died.

Spring: a single queen builds

As it warms up, usually around April, the queen wakes and feeds on nectar. She chews wood into a paste and builds a small paper nest, often no bigger than a golf ball. She lays her first eggs and raises the first workers alone.

Early summer: workers take over

The first workers are sterile females. They take over building, foraging and feeding the young. The queen stays inside and lays eggs. The nest grows layer by layer, and traffic at the entrance increases.

Workers hunt insects such as caterpillars and flies to feed larvae. That is why wasps are useful garden predators.

Late summer: peak numbers

By late summer a large nest can hold thousands of wasps. The colony starts raising new queens and males instead of workers. With fewer larvae to feed, workers lose their sugar supply and turn to drinks, fruit and bins.

Autumn: the colony ends

New queens and males leave to mate. Mated queens look for a place to hibernate. The old queen dies, the workers die off, and the nest is abandoned. It is never reused.

  • Spring: queen alone, small nest
  • Summer: workers, fast growth
  • Late summer: peak size, new queens
  • Autumn: decline and death
  • Winter: only queens survive, hibernating

European hornets follow a similar year

European hornets have a similar cycle, with fewer, larger insects. They often fly at dusk and even after dark, attracted to lit windows. We treat them for the same £125 as wasps.

The wasp life cycle: common questions

How long does a wasp live?

Workers live a few weeks in summer. Queens can live for about a year, including hibernation.

Do wasps make honey?

No. Wasps do not store honey. They feed larvae on insects.

Is an empty winter nest a risk?

No. An old nest is empty and will not be reused.

Keep reading

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We never treat beesIf you have bees, we'll put you in touch with a local beekeeper for free.

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£125 fixed. No call-out fee. Free revisit if it's still active.

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