Nematicidal and larvicidal activities of the essential oils from aerial parts of Pectis oligocephala and Pectis apodocephala Baker

• Published in: Anais da Academia Brasileira de Ciências Vol. 79; no. 2; pp. 209 - 213
• Main Authors: Albuquerque, Maria Rose Jane R, Costa, Sonia Maria O, Bandeira, Paulo N, Santiago, Gilvandete Maria P, Andrade-Neto, Manoel, Silveira, Edilberto R, Pessoa, Otilia D L
• Format: Journal Article
• Language: English
• Published: Brazil Academia Brasileira de Ciências 01-06-2007
• Subjects: Aedes - drug effects; Aedes - growth & development; Aedes aegypti; Animals; Antinematodal Agents - isolation & purification; Antinematodal Agents - pharmacology; atividade larvicida; atividade nematicida; essential oil; Insecticides - isolation & purification; Insecticides - pharmacology; Larva - drug effects; larvicidal activity; Meloidogyne incognita; Multidisciplinarias (Ciencias Sociales y Humanidades); MULTIDISCIPLINARY SCIENCES; nematicidal activity; Nematoda; Oils, Volatile - chemistry; Oils, Volatile - isolation & purification; Oils, Volatile - pharmacology; Pectis; Pectis apodocephala; Pectis oligocephala; Plant Leaves - chemistry; Time Factors; Tylenchoidea - drug effects; óleo essencial; atividade nematicida; atividade larvicida; óleo essencial; Pectis apodocephala; Pectis oligocephala; larvicidal activity; essential oil; nematicidal activity
• ISSN: 0001-3765; 1678-2690; 0001-3765; 1678-2690
• DOI: 10.1590/S0001-37652007000200003

The chemical composition of the essential oils from aerial parts of Pectis apodocephala and Pectis oligocephala were analyzed by GC-MS. The essential oils of these species were predominantly constituted by monoterpenes. Geranial (42.9-44.5%), neral (32.2-34.2%) and alpha-pinene (10.7-11.4%) were the main constituents in the oil of P. apodocephala, while p-cymene (50.3-70.9%) and thymol (24.4-44.7%), were the prevalent compounds in the oil of P. oligocephala. The essential oils were tested against the root knot nematode Meloidogyne incognita and Aedes aegypti larvae survival. The results obtained show that both essential oils exhibited significant activity and could be considered as potent natural namaticidal and larvicidal agents.