Insecticidal activity of essential oils of Pelargonium graveolens l'Herit and Lippia alba (Mill) N. E. Brown against Spodoptera frugiperda (J. E. Smith)

Quimica nova

Alves, Péricles B.¹  Moraes, Valéria Regina de S.¹  Blank, Arie F.¹  Nogueira, Paulo Cesar de L.¹  Silva, Anderson de C.¹  Niculau, Edenilson dos S.¹  Silva, Maria F. G. F. da²  Matos, Andréia P.²  Fernandes, João B.²  Corrêa, Arlene G.²  Bernardo, Antonio R.²  Volante, Ana C.²  Ribeiro, Leandro do P.³ 

[1] Universidade Federal de Sergipe, São Cristóvão, Brasil;Universidade Federal de São Carlos, São Carlos, Brasil;Universidade de São Paulo, Piracicaba, Brasil

关键词: Lippia alba;    Pelargonium graveolens;    Spodoptera frugiperda.;   

DOI  :  10.1590/S0100-40422013000900020

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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 LD50 1.13 µg/mg per insect and LD90 2.56 µg/mg per insect. Three essential oils of L. alba also exhibited insecticidal activity with LD50 ranging from 1.20 to 1.56 µg/mg per insect and LD90 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.

【 授权许可】

CC BY