Wasp Nest Destroyer Foam kills wasps in their nest from a distance. Applied from approximately 2m, the 300ml of foam is enough to treat 3 large nests. Contains D-phenothrin and Tetramethrin. Kills wasps in the nest. Effective within 24 hours. Enough to treat 3 large wasp nests. Always read the label and product information before use. Use biocides safely. This products is intended for use on wasps and wasp nests located outdoors.