Insecticidal Effects of the Annonaceous Acetogenin Squamocin and the Acetogenin Fraction of Seeds of <i>Rollinia occidentalis</i> on Soybean and Corn Pests

Abstract

Journal of Agricultural Chemistry and Environment Vol.03 No.04(2014), Article ID:51529,4 pages 10.4236/jacen.2014.34019 Insecticidal Effects of the Annonaceous Acetogenin Squamocin and the Acetogenin Fraction of Seeds of Rollinia occidentalis on Soybean and Corn PestsDiego Tolosa1, José Ruiz Hidalgo1, Pedro Eugenio Sal1, Susana Popich2, Alicia Bardón1,3, Adriana Neske1* ●Abstract ●Full-Text PDF ●Full-Text HTML •Full-Text XML ●Full-Text ePUB ●Linked References ●How to Cite this Article 1Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho, Argentina2Universidad Nacional de Chilecito, Chilecito, Argentina3INQUINOA-CONICET, Tucumán, ArgentinaEmail: *aneske@fbqf.unt.edu.arCopyright © 2014 by authors and Scientific Research Publishing Inc.This work is licensed under the Creative Commons Attribution International License (CC BY).http://creativecommons.org/licenses/by/4.0/Received 15 September 2014; revised 18 October 2014; accepted 5 November 2014ABSTRACTA treatment based on the acetogenin fraction of the methanol extract of Rollinia occidentalis seeds was applied to soybean crops for three consecutive years. In relation to the control population, the treatment reduced the population of Anticarsia gemmatalis, Rachiplusia nu, Pseudoplusia includens, Loxostege bifidalis and Spodoptera frugiperda to 52% and 65% after 48 h of application at concentrations of 500 and 750 µg/mL respectively, while low toxic effects were detected on natural enemies. The extract treatment at 500 µg/mL and a solution of the annonaceous acetogenin, squamocin, at 50 and 100 µg/mL, were also applied to a corn field to produce 75%, 93% and 100% mortality rates on the population of S. frugiperda, respectively, after 72 h of application. In addition, damages caused by lepidopterans in treated crops were lower than those observed in non treated fields, evaluated by residual biomass. This statement is based on data from trials with the commercially available insecticides lufenuron and cypermethrin.