Cuprinol Woodworm Killer Liquid 5Luprinol Woodworm Killer is a clear water based low odour formulation that kills all types of woodworm. Its deep penetration prevents re infestation and ensures effective protection for years to come. Do not use on beehives or bee keeping equipment. Features: A clear, water based woodworm killer for interior wood. Suitable for beams, joists, floors, wooden furniture and more. Also eradicates and protects against insect attack including House Longhorn