Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)

The aims of this research were to determine the chemical composition of the essential oil of three Tunisian plants and to evaluate their biological activity against eggs, larvae, and adult insects of Ectomyelois ceratoniae Zeller. The essential oils extracted from leaves of Thymus capitatus (L.) Hof...

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Autores principales:	Amri,Ismail, Hamrouni,Lamia, Hanana,Mohsen, Jamoussi,Bassem, Lebdi,Kaouthar
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Bio-pesticides Ectomyelois ceratoniae essential oils fumigation insecticidal activity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300004
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spelling	oai:scielo:S0718-583920140003000042018-10-01Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)Amri,IsmailHamrouni,LamiaHanana,MohsenJamoussi,BassemLebdi,Kaouthar Bio-pesticides Ectomyelois ceratoniae essential oils fumigation insecticidal activity The aims of this research were to determine the chemical composition of the essential oil of three Tunisian plants and to evaluate their biological activity against eggs, larvae, and adult insects of Ectomyelois ceratoniae Zeller. The essential oils extracted from leaves of Thymus capitatus (L.) Hoffmanns. & Link, Rosmarinus officinalis L. and needles of Pinus halepensis Mill. were analyzed by gas chromatography-mass spectrometry; 34, 16, and 56 constituents were identified, respectively. The major constituents were (Z)-caryophyllene (23.8%), β-myrcene (20.5%) and α-pinene (13.3%) in P. halepensis oil, carvacrol (66.9%), p-cymene (9.1%), and δ-terpinene (6.2%) in T. capitatus oil and 1,8-cineole (47.5%), camphor (14.9%), α-pinene (14.1%), and borneol (13.1%) in R. officinalis oil. The insecticidal effects of essential oils on eggs, larvae, and adults of E. ceratoniae were investigated. Ovicidal activity of oils was studied by spray on eggs while larvicidal and adulticidal activities were assessed by fumigation and spray. Number of hatched eggs was verified after 10 d, larva and adult mortalities were observed after 6, 12, and 24 h. Globally, eggs and larvae were the most resistant to the three different oils, needing higher doses to obtain a higher mortality. The spray method was most effective than fumigation. Essential oil extracted from T. capitatus proved to be very toxic towards E. ceratoniae on all three phases at the dose of 20 μL mL-1 (100% inhibition), followed by the oil from R. officinalis (90-100% inhibition), nevertheless, weak activity was obtained with P. halepensis oil (68.3-85% inhibition). Results obtained may suggest that the essential oils of T. capitatus and R. officinalis possess high insecticidal activity and therefore, can be used in biotechnological application as natural preservative in stored dates and could be useful in managing populations of E. ceratoniae in field.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.3 20142014-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300004en10.4067/S0718-58392014000300004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bio-pesticides Ectomyelois ceratoniae essential oils fumigation insecticidal activity
spellingShingle	Bio-pesticides Ectomyelois ceratoniae essential oils fumigation insecticidal activity Amri,Ismail Hamrouni,Lamia Hanana,Mohsen Jamoussi,Bassem Lebdi,Kaouthar Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)
description	The aims of this research were to determine the chemical composition of the essential oil of three Tunisian plants and to evaluate their biological activity against eggs, larvae, and adult insects of Ectomyelois ceratoniae Zeller. The essential oils extracted from leaves of Thymus capitatus (L.) Hoffmanns. & Link, Rosmarinus officinalis L. and needles of Pinus halepensis Mill. were analyzed by gas chromatography-mass spectrometry; 34, 16, and 56 constituents were identified, respectively. The major constituents were (Z)-caryophyllene (23.8%), β-myrcene (20.5%) and α-pinene (13.3%) in P. halepensis oil, carvacrol (66.9%), p-cymene (9.1%), and δ-terpinene (6.2%) in T. capitatus oil and 1,8-cineole (47.5%), camphor (14.9%), α-pinene (14.1%), and borneol (13.1%) in R. officinalis oil. The insecticidal effects of essential oils on eggs, larvae, and adults of E. ceratoniae were investigated. Ovicidal activity of oils was studied by spray on eggs while larvicidal and adulticidal activities were assessed by fumigation and spray. Number of hatched eggs was verified after 10 d, larva and adult mortalities were observed after 6, 12, and 24 h. Globally, eggs and larvae were the most resistant to the three different oils, needing higher doses to obtain a higher mortality. The spray method was most effective than fumigation. Essential oil extracted from T. capitatus proved to be very toxic towards E. ceratoniae on all three phases at the dose of 20 μL mL-1 (100% inhibition), followed by the oil from R. officinalis (90-100% inhibition), nevertheless, weak activity was obtained with P. halepensis oil (68.3-85% inhibition). Results obtained may suggest that the essential oils of T. capitatus and R. officinalis possess high insecticidal activity and therefore, can be used in biotechnological application as natural preservative in stored dates and could be useful in managing populations of E. ceratoniae in field.
author	Amri,Ismail Hamrouni,Lamia Hanana,Mohsen Jamoussi,Bassem Lebdi,Kaouthar
author_facet	Amri,Ismail Hamrouni,Lamia Hanana,Mohsen Jamoussi,Bassem Lebdi,Kaouthar
author_sort	Amri,Ismail
title	Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)
title_short	Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)
title_full	Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)
title_fullStr	Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)
title_full_unstemmed	Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)
title_sort	essential oils as biological alternatives to protect date palm (phoenix dactylifera l.) against ectomyelois ceratoniae zeller (lepidoptera: pyralidae)
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300004
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Essential oils as biological alternatives to protect date palm (Phoenix dactylifera L.) against Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae)

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