Tobacco water is a traditional organic insecticide used in domestic gardening. Tobacco dust can be used similarly. It is produced by boiling strong tobacco in water, or by steeping the tobacco in water for a longer period. When cooled the mixture can be applied as a spray, or ‘painted’ on to the leaves of garden plants, where it will prove deadly to insects.
Basque angulero fishermen kill immature eels in an infusion of tobacco leaves before parboiling them in salty water for transportation to market as angulas, a seasonal delicacy.