Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions

ABSTRACT The acaricidal effect of two formulations of essential oil of "rika-rika" [Acantholippia deserticola Moldenke (Verbenaceae)] of 3 and 6 years of shelf life were evaluated on females of two-spotted spider mite [Tetranychus urticae (Acari: Tetranychidae)] re gistering the repellency...

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Autores principales:	Hernández Pinto,Gary, Tello Mercado,Víctor, Rioja Soto,Tommy
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2020
Materias:	Formulation repellency oviposition
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292020000100013
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spelling	oai:scielo:S0718-342920200001000132020-07-30Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditionsHernández Pinto,GaryTello Mercado,VíctorRioja Soto,Tommy Formulation repellency oviposition ABSTRACT The acaricidal effect of two formulations of essential oil of "rika-rika" [Acantholippia deserticola Moldenke (Verbenaceae)] of 3 and 6 years of shelf life were evaluated on females of two-spotted spider mite [Tetranychus urticae (Acari: Tetranychidae)] re gistering the repellency and effects on the oviposition. The bean leaf discs [Phaseolus vulgaris Linneo (Fabaceae)] were covered with the formulation using the immersion technique under laboratory conditions (23.31 ± 2.82 49.70 ± 1.42% RH and 12:12 L:D photoperiod). The mortality of T. urticae was evaluated at 24, 48 and 72 hours post-application. The variables evaluated were: percentage of mortality by residual contact, percentage of repellency and number of eggs laid. Only the formulation at 1% (v/v) with 3 years shelf life reached a mortality of 50% after 24 hours of evaluation. The concentrations at 0.3% and 0.7% (v/v) with 3 years shelf life reached this value after 72 hours. None of the concentrations with 6 years shelf life reached values above 50% of mortality. A maximum mortality of 85.71% was registered in the concentration at 1% (v/v) with 3-year shelf life. The 3-year shelf life formulation showed repellent activity for the three periods evaluated (24, 48 and 72 hours), with values above 90% after 72 hours post-application. The ovisposture test revealed that the concentrations of 3 years shelf life had an inhibitory effect on the oviposition of the two-spotted spider. These results suggest a considerable acaricidal activity of the essential oil of A. deserticola with a 3-year shelf life on adult females of T. urticae.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.38 n.1 20202020-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292020000100013en10.4067/S0718-34292020000100013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Formulation repellency oviposition
spellingShingle	Formulation repellency oviposition Hernández Pinto,Gary Tello Mercado,Víctor Rioja Soto,Tommy Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions
description	ABSTRACT The acaricidal effect of two formulations of essential oil of "rika-rika" [Acantholippia deserticola Moldenke (Verbenaceae)] of 3 and 6 years of shelf life were evaluated on females of two-spotted spider mite [Tetranychus urticae (Acari: Tetranychidae)] re gistering the repellency and effects on the oviposition. The bean leaf discs [Phaseolus vulgaris Linneo (Fabaceae)] were covered with the formulation using the immersion technique under laboratory conditions (23.31 ± 2.82 49.70 ± 1.42% RH and 12:12 L:D photoperiod). The mortality of T. urticae was evaluated at 24, 48 and 72 hours post-application. The variables evaluated were: percentage of mortality by residual contact, percentage of repellency and number of eggs laid. Only the formulation at 1% (v/v) with 3 years shelf life reached a mortality of 50% after 24 hours of evaluation. The concentrations at 0.3% and 0.7% (v/v) with 3 years shelf life reached this value after 72 hours. None of the concentrations with 6 years shelf life reached values above 50% of mortality. A maximum mortality of 85.71% was registered in the concentration at 1% (v/v) with 3-year shelf life. The 3-year shelf life formulation showed repellent activity for the three periods evaluated (24, 48 and 72 hours), with values above 90% after 72 hours post-application. The ovisposture test revealed that the concentrations of 3 years shelf life had an inhibitory effect on the oviposition of the two-spotted spider. These results suggest a considerable acaricidal activity of the essential oil of A. deserticola with a 3-year shelf life on adult females of T. urticae.
author	Hernández Pinto,Gary Tello Mercado,Víctor Rioja Soto,Tommy
author_facet	Hernández Pinto,Gary Tello Mercado,Víctor Rioja Soto,Tommy
author_sort	Hernández Pinto,Gary
title	Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions
title_short	Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions
title_full	Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions
title_fullStr	Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions
title_full_unstemmed	Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions
title_sort	shelf life of essential oil of acantholippia deserticola (phil. ex f. phil.) moldenke and its acaricidal effect on two-spotted mite [tetranychus urticae koch (acari: tetranychidae)] under laboratory conditions
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292020000100013
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Shelf life of essential oil of Acantholippia deserticola (Phil. ex F. Phil.) Moldenke and its acaricidal effect on two-spotted mite [Tetranychus urticae Koch (Acari: Tetranychidae)] under laboratory conditions

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