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Effect of Maize Pith Free Phenols on Larval Growth and Development of <I>Sesamia nonagrioides </I>(Lepidoptera: Noctuidae)

Author(s): Rogelio Santiago | Xose C. Souto | Liliana Monetti | Bernardo Ordas | Amando Ordas | Rosa A. Malvar

Journal: Journal of Entomology
ISSN 1812-5670

Volume: 3;
Issue: 4;
Start page: 281;
Date: 2006;
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Keywords: Zea mays | bioassay | phenolic compounds | survival | antibiosis | resistance

p-coumaric acid, ferulic acid, p-hydroxybenzaldehyde and vanillin) on the growth and development of S. nonagrioides larvae. Three different concentrations of each phenolic compound and a mixture of the four were evaluated. Data were recorded on larval and pupal weight, time to pupation and percentage of pupation and mortality. Growth and survival showed no significant differences between the larvae reared on diets with the different treatments and the control. It was concluded that these four compounds, although found in higher concentrations in resistant genotypes, were not toxic to S. nonagrioides in free form under laboratory conditions. Possible ways these compounds could be related with the S. nonagrioides resistance are discussed. ]]>
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