Fuente: WIPO "essential oil or extracts" A plant of the species Leptospermum liversidgei which isable to block the carbon dioxide message to mosquitoesand/or fleas within the vicinity of its locus. The present invention also provides a crude or refinedessential oil extract from the said plant. Another aspect of the invention provides a method forrepelling mosquitoes and/or fleas comprising thecultivation of the said plant. A further aspect of the invention provides another methodfor repelling mosquitoes and/or fleas comprising the use ofthe said essential oil extract from the said plant.