| Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). | |
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MedLine Citation:
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PMID: 21437495 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The lethal and sublethal effects of the ecdysone agonist methoxyfenozide on the fall armyworm, Spodoptera frugiperda (J. E. Smith), were investigated by feeding a methoxyfenozide-treated diet to fifth instars until pupation in doses corresponding to the LC10 and LC25 for the compound. Larval mortality reached 8% and 26% in the low and high concentration groups, respectively, on the seventh day of the experiment. A progressive larval mortality of 12% for the LC10 and 60% for the LC25 was observed before pupation. Treated larvae exhibited lower pupal weights, higher pupal mortality, presence of deformed pupae, and more deformed adults than untreated larvae. The incorporation of methoxyfenozide into the diet had a significant effect on the timing of larval development. The development period for males and females was about seven days longer than the controls for both concentrations tested. In contrast, the compound affected neither pupae nor adult longevity. Finally, S. frugiperda adults that resulted from fifth instars treated with methoxyfenozide were not affected in their mean cumulative number of eggs laid per female (fecundity), nor percentages of eggs hatched (fertility), or the sex ratio. Our results suggest that the combination of lethal and sublethal effects of methoxyfenozide may have important implications for the population dynamics of the fall armyworm. |
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Authors:
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N Zarate; O Díaz; A M Martínez; J I Figueroa; M I Schneider; G Smagghe; E Viñuela; F Budia; S Pineda |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neotropical entomology Volume: 40 ISSN: 1678-8052 ISO Abbreviation: Neotrop. Entomol. Publication Date: 2011 Jan-Feb |
Date Detail:
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Created Date: 2011-03-25 Completed Date: 2011-08-03 Revised Date: 2011-08-15 |
Medline Journal Info:
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Nlm Unique ID: 101189728 Medline TA: Neotrop Entomol Country: Brazil |
Other Details:
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Languages: eng Pagination: 129-37 Citation Subset: IM |
Affiliation:
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Instituto de Investigaciones Agropecuarias y Forestales, Univ Michoacana de San Nicolás de Hidalgo, Tarímbaro, Michoacán, Mexico. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Female Fertility / drug effects Hydrazines / pharmacology*, toxicity Juvenile Hormones / pharmacology*, toxicity Larva / drug effects Male Pest Control Spodoptera / drug effects*, growth & development, physiology* |
| Chemical | |
Reg. No./Substance:
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0/Hydrazines; 0/Juvenile Hormones; 0/methoxyfenozide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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