FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY
The aim of this study was to report the occurrence of Xanthopastis timais (Cramer, 1780) (Lepidoptera: Noctuidae) in amaryllis ( Hippeastrum hybridum Hort ., Amaryllidaceae), as well as estimating lethal concentrations (LC 50 and LC 99 ) of soursop seed extract, Annona muricata...
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doaj-b5c6f625fc144c1abfb8c10b919a5f972020-11-24T21:23:58ZengUniversidade Federal Rural do Semi-ÁridoRevista Caatinga0100-316X1983-21252017-01-01302420426FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITYLÍGIA BROGLIO MICHELETTISÔNIA MARIA FORTI BROGLIOEURICO EDUARDO PINTO DE LEMOSROSEANE CRISTINA PREDES TRINDADEELLEN CARINE NEVES VALENTEThe aim of this study was to report the occurrence of Xanthopastis timais (Cramer, 1780) (Lepidoptera: Noctuidae) in amaryllis ( Hippeastrum hybridum Hort ., Amaryllidaceae), as well as estimating lethal concentrations (LC 50 and LC 99 ) of soursop seed extract, Annona muricata L. (Annonaceae), against its larvae. The experiment was carried out at the Laboratory of Entomology of the Research Center for Agricultural Sciences, Federal University of Alagoas, in Rio Largo - AL, Brazil . First, we collected caterpillars from amaryllis plants that were reared until pupal and adult stages (parental generation). Next, part of the adults was used for species identification, and the rest were bred to produce next generation (F1), being after that applied in a laboratory bioassay. The lab trial was performed in a completely randomized design, with six treatments and five replications containing three second - instar caterpillars. These larvae were fed pieces of amaryllis leaf (4 x 4 cm), which were previously soaked in treatments for 30 seconds and, air - dried on absorbent papers for one hour. Each treatment consisted of one concentration of ethanol extract of soursop seeds (0.0, 1.0, 0.5, 0.25, 0.125 and 0.0625% w/ v) with distilled water and DMSO at 1% (v/ v), for solutions. We noted that the lethal concentrations LC 50 and LC 99 were 0.29% (w/ v) and 2.27% (w/ v), respectively. In view of our results, we can state that larval stage of X . timais were influenced by extract application in terms of survival, mortality, larvae weight and larval stage length. Besides of that, it was the first time this species was recorded in Alagoas state.http://www.redalyc.org/articulo.oa?id=237149966017 |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
LÍGIA BROGLIO MICHELETTI SÔNIA MARIA FORTI BROGLIO EURICO EDUARDO PINTO DE LEMOS ROSEANE CRISTINA PREDES TRINDADE ELLEN CARINE NEVES VALENTE |
spellingShingle |
LÍGIA BROGLIO MICHELETTI SÔNIA MARIA FORTI BROGLIO EURICO EDUARDO PINTO DE LEMOS ROSEANE CRISTINA PREDES TRINDADE ELLEN CARINE NEVES VALENTE FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY Revista Caatinga |
author_facet |
LÍGIA BROGLIO MICHELETTI SÔNIA MARIA FORTI BROGLIO EURICO EDUARDO PINTO DE LEMOS ROSEANE CRISTINA PREDES TRINDADE ELLEN CARINE NEVES VALENTE |
author_sort |
LÍGIA BROGLIO MICHELETTI |
title |
FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY |
title_short |
FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY |
title_full |
FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY |
title_fullStr |
FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY |
title_full_unstemmed |
FIRST RECORD OF Xanthopastis timais IN AMARYLLIS AND EFFECT OF SOURSOP EXTRACT ON LARVAL MORTALITY |
title_sort |
first record of xanthopastis timais in amaryllis and effect of soursop extract on larval mortality |
publisher |
Universidade Federal Rural do Semi-Árido |
series |
Revista Caatinga |
issn |
0100-316X 1983-2125 |
publishDate |
2017-01-01 |
description |
The aim of this study was to report the occurrence of Xanthopastis timais (Cramer, 1780) (Lepidoptera: Noctuidae) in amaryllis ( Hippeastrum hybridum Hort ., Amaryllidaceae), as well as estimating lethal concentrations (LC 50 and LC 99 ) of soursop seed extract, Annona muricata L. (Annonaceae), against its larvae. The experiment was carried out at the Laboratory of Entomology of the Research Center for Agricultural Sciences, Federal University of Alagoas, in Rio Largo - AL, Brazil . First, we collected caterpillars from amaryllis plants that were reared until pupal and adult stages (parental generation). Next, part of the adults was used for species identification, and the rest were bred to produce next generation (F1), being after that applied in a laboratory bioassay. The lab trial was performed in a completely randomized design, with six treatments and five replications containing three second - instar caterpillars. These larvae were fed pieces of amaryllis leaf (4 x 4 cm), which were previously soaked in treatments for 30 seconds and, air - dried on absorbent papers for one hour. Each treatment consisted of one concentration of ethanol extract of soursop seeds (0.0, 1.0, 0.5, 0.25, 0.125 and 0.0625% w/ v) with distilled water and DMSO at 1% (v/ v), for solutions. We noted that the lethal concentrations LC 50 and LC 99 were 0.29% (w/ v) and 2.27% (w/ v), respectively. In view of our results, we can state that larval stage of X . timais were influenced by extract application in terms of survival, mortality, larvae weight and larval stage length. Besides of that, it was the first time this species was recorded in Alagoas state. |
url |
http://www.redalyc.org/articulo.oa?id=237149966017 |
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