EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)

Essential oils obtained from Gomortega keule, Laurelia sempervirens, Origanum vulgare, Eucalyptus globulus, and Thymus vulgaris were analyzed by gas chromatography and gas chromatography-mass spectrometry and evaluated for their toxicity against adults of Sitophilus zeamais (Motschulky) and Acanthos...

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Autores principales:	BITTNER,MAGALIS L., CASANUEVA,MARÍA E., ARBERT,CECILIA C, AGUILERA,MILENKO A, HERNÁNDEZ,VICTOR J, BECERRA,JOSÉ V
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2008
Materias:	Biological-activity Gomortega keule Laurelia sempervirens Eucalyptus globulus Origanum vulgare Thymus vulgaris Terpenes toxicity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100026
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spelling	oai:scielo:S0717-970720080001000262008-07-03EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)BITTNER,MAGALIS L.CASANUEVA,MARÍA E.ARBERT,CECILIA CAGUILERA,MILENKO AHERNÁNDEZ,VICTOR JBECERRA,JOSÉ V Biological-activity Gomortega keule Laurelia sempervirens Eucalyptus globulus Origanum vulgare Thymus vulgaris Terpenes toxicity Essential oils obtained from Gomortega keule, Laurelia sempervirens, Origanum vulgare, Eucalyptus globulus, and Thymus vulgaris were analyzed by gas chromatography and gas chromatography-mass spectrometry and evaluated for their toxicity against adults of Sitophilus zeamais (Motschulky) and Acanthoscelides obtectus (Say) (Coleóptera). Contact toxicity was assayed by impregnating filter paper discs with the oils. The amount of essential oils applied in each desiccator (4 1 capacity) was 4, 8, 16, or 32 ul, corresponding to 1, 2, 4, or 8 fj.1/1 air. The results showed significant differences between the tested dosages and exposure periods of the essential oils. Although desirable insecticidal activities against A obtectus were achieved with the essential oils of all five plants, the oils from G. keule and L. sempervirens were the most effective at 96 h. On the other hand, the essential oils of E. globulus and T. vulgaris were most effective against S. zeamais. In all plant species, higher doses or longer exposure periods were more effective against both insects. No mortality was observed in the control group (acetone only) of each species. Therefore, these results suggest that essential oils from the studied plants may be used against insect pests in grain storageinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.53 n.1 20082008-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100026en10.4067/S0717-97072008000100026
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Biological-activity Gomortega keule Laurelia sempervirens Eucalyptus globulus Origanum vulgare Thymus vulgaris Terpenes toxicity
spellingShingle	Biological-activity Gomortega keule Laurelia sempervirens Eucalyptus globulus Origanum vulgare Thymus vulgaris Terpenes toxicity BITTNER,MAGALIS L. CASANUEVA,MARÍA E. ARBERT,CECILIA C AGUILERA,MILENKO A HERNÁNDEZ,VICTOR J BECERRA,JOSÉ V EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)
description	Essential oils obtained from Gomortega keule, Laurelia sempervirens, Origanum vulgare, Eucalyptus globulus, and Thymus vulgaris were analyzed by gas chromatography and gas chromatography-mass spectrometry and evaluated for their toxicity against adults of Sitophilus zeamais (Motschulky) and Acanthoscelides obtectus (Say) (Coleóptera). Contact toxicity was assayed by impregnating filter paper discs with the oils. The amount of essential oils applied in each desiccator (4 1 capacity) was 4, 8, 16, or 32 ul, corresponding to 1, 2, 4, or 8 fj.1/1 air. The results showed significant differences between the tested dosages and exposure periods of the essential oils. Although desirable insecticidal activities against A obtectus were achieved with the essential oils of all five plants, the oils from G. keule and L. sempervirens were the most effective at 96 h. On the other hand, the essential oils of E. globulus and T. vulgaris were most effective against S. zeamais. In all plant species, higher doses or longer exposure periods were more effective against both insects. No mortality was observed in the control group (acetone only) of each species. Therefore, these results suggest that essential oils from the studied plants may be used against insect pests in grain storage
author	BITTNER,MAGALIS L. CASANUEVA,MARÍA E. ARBERT,CECILIA C AGUILERA,MILENKO A HERNÁNDEZ,VICTOR J BECERRA,JOSÉ V
author_facet	BITTNER,MAGALIS L. CASANUEVA,MARÍA E. ARBERT,CECILIA C AGUILERA,MILENKO A HERNÁNDEZ,VICTOR J BECERRA,JOSÉ V
author_sort	BITTNER,MAGALIS L.
title	EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)
title_short	EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)
title_full	EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)
title_fullStr	EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)
title_full_unstemmed	EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)
title_sort	effects of essential oils from five plant species against the granary weevils sitophilus zeamais and acanthoscelides obtectus (coleóptera)
publisher	Sociedad Chilena de Química
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100026
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EFFECTS OF ESSENTIAL OILS FROM FIVE PLANT SPECIES AGAINST THE GRANARY WEEVILS SITOPHILUS ZEAMAIS AND ACANTHOSCELIDES OBTECTUS (COLEÓPTERA)

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