Ribeiro, Leandro P.
Vendramim, Jose D.
Isman, Murray B.
Total Authors: 4
 Univ Sao Paulo, Luiz de Queiroz Coll Agr USP ESALQ, Dept Entomol & Acarol, BR-13418900 Piracicaba, SP - Brazil
 Univ British Columbia, Fac Land & Food Syst, Vancouver, BC V6T 1Z4 - Canada
Total Affiliations: 2
Web of Science Citations:
The acute and chronic toxicity of ethanolic seed extracts from selected Brazilian Annona species (Annona montana Macfadyen, Annona mucosa Jacquin, Annona muricata Linnaeus, and Annona sylvatica A. St.-Hil) and an acetogenin-based commercial bioinsecticide (Anosoe) were investigated against the cabbage looper Trichoplusia ni Hubner (Lepidoptera: Noctuidae) and the green peach aphid Myzus persicae (Sulzer) (Hemiptera: Aphididae). In the laboratory, extracts of A. mucosa and A. sylvatica as well as Anosom((R)) were especially active through oral and topical administration. A greenhouse trial showed that a formulated A. mucosa extract and Anosom were highly effective (>98% mortality) against third instar T ni larvae, and comparable to a pyrethrin-based commercial insecticide (Insect Spray((R))) used as a positive control. Similar to results with T ni, A. mucosa extract showed the greatest aphicidal activity followed by A. sylvatica extract and Anosom. In another greenhouse trial, aphid population reduction from the formulated A. mucosa extract was superior to that provided by other treatments including the positive control. Though inferior to the A. mucosa extract, the acetogenin-based commercial insecticide (Anosom) and A. sylvatica extract also reduced aphid populations in a manner comparable to the positive control. Botanical insecticides based on these Annonaceae derivatives could be useful in the framework of Brassica IPM in Brazil and elsewhere, especially for organic production. (C) 2014 Elsevier Ltd. All rights reserved. (AU)