Nippon Wasp Nest Destroyer Foam This fast-acting foam rapidly allows you to safely destroy wasp nests from a distance of up to 3m. It's easy to apply - simply spray directly on the nest entrance. Spray in early morning or late evening when wasps are in the nest. Hold can upright 3 metres away from the nest and spray in 3 second bursts to thoroughly wet the nest. Pay particular attention to the nest entrance or where the wasps are seen entering and leaving. A repeat application to the nest may be required where the entrance is not readily accessible.
