Why Are There So Many Wasps in Devon in September?

Just when you think summer is beginning to wind down, wasps seem to appear everywhere. They hover around pub gardens, investigate picnic tables and make outdoor meals surprisingly stressful. So, why are there so many wasps during September?

The answer lies in the wasp colony’s natural lifecycle. Earlier in summer, worker wasps spend most of their time collecting insects to feed the developing larvae. In return, the larvae produce a sugary secretion that gives the workers energy.

By September, the queen has usually reduced or stopped producing new larvae. With their regular source of sugar disappearing, worker wasps begin searching elsewhere. Ripe fruit, sweet drinks, ice creams, cakes and open rubbish bins all become tempting targets. Devon’s orchards, gardens, beer gardens and outdoor attractions can therefore provide ideal feeding opportunities.

Warm September weather may keep colonies active for longer. A mature nest can contain thousands of wasps, making their presence particularly noticeable around homes and businesses. Nests are commonly found in lofts, sheds, wall cavities, roof spaces and underground burrows.

To discourage wasps, keep food and drinks covered when eating outside, clear away spillages promptly and make sure bin lids close securely. Pick up fallen fruit and check cans or bottles before drinking from them. Avoid swatting at wasps, as sudden movements may make them feel threatened.

If you notice a steady stream of wasps entering one particular hole, there may be an active nest nearby. Do not block the entrance or attempt to remove the nest yourself, as disturbed wasps may become defensive.

Most colonies naturally die off as colder weather arrives. When an active nest presents a risk to your family, customers or pets, contact Devon Pest Control for safe advice and appropriate treatment.