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Bioactivity of Carica papaya (Caricaceae) against Spodoptera frugiperda (Lepidoptera: Noctuidae)
Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, México D.F. 04960, Mexico
Centro de Investigación y Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6, Zona Universitaria, San Luis Potosí, SLP, 78210, Mexico
* Author to whom correspondence should be addressed.
Received: 14 July 2011; in revised form: 6 August 2011 / Accepted: 25 August 2011 / Published: 2 September 2011
Abstract: The composition of a chloroform seed extract of C. papaya was determined by GC-MS. Nineteen compounds were identified, with oleic (45.97%), palmitic (24.1%) and stearic (8.52%) acids being the main components. The insecticidal and insectistatic activities of the extract and the three main constituents were tested. Larval duration increased by 3.4 d and 2.5 d when the extract was used at 16,000 and 9,600 ppm, respectively, whereas the pupal period increased by 2.2 d and 1.1 d at the same concentrations. Larval viability values were 0%, 29.2%, and 50% when the extract was applied at 24,000, 16,000, and 9,600 ppm, respectively; pupal viability was 42.9% and 66.7% at 16,000 and 9,600 ppm; and pupal weight decreased by 25.4% and 11.5% at 16,000 and 9,600 ppm. The larval viability of the main compounds was 33.3%, 48.5%, and 62.5% when exposed to 1,600 ppm of palmitic acid, oleic acid, or stearic acid, respectively.
Keywords: fall armyworm; fatty acids; larvicide; insectistatic; control
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Pérez-Gutiérrez, S.; Zavala-Sánchez, M.A.; González-Chávez, M.M.; Cárdenas-Ortega, N.C.; Ramos-López, M.A. Bioactivity of Carica papaya (Caricaceae) against Spodoptera frugiperda (Lepidoptera: Noctuidae). Molecules 2011, 16, 7502-7509.
Pérez-Gutiérrez S, Zavala-Sánchez MA, González-Chávez MM, Cárdenas-Ortega NC, Ramos-López MA. Bioactivity of Carica papaya (Caricaceae) against Spodoptera frugiperda (Lepidoptera: Noctuidae). Molecules. 2011; 16(9):7502-7509.
Pérez-Gutiérrez, Salud; Zavala-Sánchez, Miguel Angel; González-Chávez, Marco Martín; Cárdenas-Ortega, Norma Cecilia; Ramos-López, Miguel Angel. 2011. "Bioactivity of Carica papaya (Caricaceae) against Spodoptera frugiperda (Lepidoptera: Noctuidae)." Molecules 16, no. 9: 7502-7509.