Seasonal · 10 June 2026
Wasp nests in Melbourne: what to do before anyone gets stung
European wasp nests become dangerous when people block holes, spray blindly, or treat at the wrong time of day.
European wasps are most active in late summer and autumn, but nest activity can continue when conditions suit. The entry point may be in a wall cavity, roof void, retaining wall, compost area or soil bank.
Do not block the hole. Wasps can chew through plasterboard or redirect into the house. Do not stand at the entry with a retail aerosol during the day, either. That is how people get stung.
Professional treatment is usually timed around lower activity and targets the nest through the entry path. Once activity stops, the entry point can be assessed and proofed if needed.
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