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Atividade inseticida de óleos essenciais de Pelargonium graveolens l'Herit e Lippia alba (Mill) N. E. Brown sobre Spodoptera frugiperda (J. E. Smith)

2013; Brazilian Chemical Society; Volume: 36; Issue: 9 Linguagem: Inglês

10.1590/s0100-40422013000900020

1678-7064

Edenilson dos Santos Niculau, Péricles Barreto Alves, Paulo César de Lima Nogueira, Valéria Regina de Souza Moraes, Andréia Pereira Matos, Antônio Bernardo, Ana Carolina Volante, João Batista Fernandes, Maria Fátima das Graças Fernandes da Silva, Arlene G. Corrêa, Arie Fitzgerald Blank, Anderson de C. Silva, Leandro do Prado Ribeiro,

Insect Pest Control Strategies

Pelargonium graveolens l'Herit AND Lippia alba (Mill) N. E. Brown AGAINST Spodoptera frugiperda (J.E. Smith).Insecticidal activity of essential oils of Pelargonium graveolens, Lippia alba and compounds geraniol, linalool, 1,8-cineole, limonene, carvone, citral and Azamax ® were evaluated against Spodoptera frugiperda.Topical application assay showed essential oil of P. graveolens has acute toxicity against Spodoptera frugiperda larvae (third instar) with LD 50 1.13 µg/mg per insect and LD 90 2.56 µg/mg per insect.Three essential oils of L. alba also exhibited insecticidal activity with LD 50 ranging from 1.20 to 1.56 µg/mg per insect and LD 90 from 2.60 to 3.75 µg/mg per insect.Geraniol, linalool, carvone and citral caused significant mortality of 30, 90, 84 and 64% respectively, compared to negative control.The bioinsecticide, Azamax ® , caused lower mortality than the compounds of the essential oils.