The aim of the present work was to study the chemical composition and biological activity of the essential oils of two plants, Mentha pulegium and Laurus nobilis, against three of the most abundant mosquito species in the T bessa region: Culex pipiens, Culiseta longiareolata and Aedes caspius. Chemical analysis of these oils by GC/MS revealed the predominance of monoterpenic compounds. Toxicological tests revealed the insecticidal power of these EOs...