Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation

The western flower thrips, Frankliniella occidentalis (Pergande), is a good working model for studies of irradiation as a quarantine treatment on agricultural products against this insect group. A study was conducted to evaluate the mortality of this species, resulting from different dosages of gamm...

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Autores principales:	Araya,Jaime E, Curkovic,Tomislav, Zárate,Herman
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2007
Materias:	gamma irradiation quarantine treatment
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072007000200010
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spelling	oai:scielo:S0365-280720070002000102007-07-20Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma IrradiationAraya,Jaime ECurkovic,TomislavZárate,Herman gamma irradiation quarantine treatment The western flower thrips, Frankliniella occidentalis (Pergande), is a good working model for studies of irradiation as a quarantine treatment on agricultural products against this insect group. A study was conducted to evaluate the mortality of this species, resulting from different dosages of gamma irradiation. Field populations were collected and exposed to 0.5, 1.0, and 1.5 kGy in a 60-Cobalt irradiator. In a first experiment, 645 adult F. occidentalis per treatment were used. Adult mortality reached 35% to 67% after 1 h exposure, significantly higher than the control. In a second experiment with the same dosages and storage at 5-6°C, evaluations were done at days 8 and 14 on at least 200 adults. Mortality increased significantly with the dosage of irradiation over time, and reached 95% with the higher dosage. In general, there were no differences between 8 and 14 days under cold storage for a given dosage. From a quarantine point of view, it is suggested to evaluate the combined effect of higher irradiation dosages and colder storage, as well as the effects of the treatments on fertility and fecundity of thripsinfo:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAAgricultura Técnica v.67 n.2 20072007-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072007000200010en10.4067/S0365-28072007000200010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	gamma irradiation quarantine treatment
spellingShingle	gamma irradiation quarantine treatment Araya,Jaime E Curkovic,Tomislav Zárate,Herman Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation
description	The western flower thrips, Frankliniella occidentalis (Pergande), is a good working model for studies of irradiation as a quarantine treatment on agricultural products against this insect group. A study was conducted to evaluate the mortality of this species, resulting from different dosages of gamma irradiation. Field populations were collected and exposed to 0.5, 1.0, and 1.5 kGy in a 60-Cobalt irradiator. In a first experiment, 645 adult F. occidentalis per treatment were used. Adult mortality reached 35% to 67% after 1 h exposure, significantly higher than the control. In a second experiment with the same dosages and storage at 5-6°C, evaluations were done at days 8 and 14 on at least 200 adults. Mortality increased significantly with the dosage of irradiation over time, and reached 95% with the higher dosage. In general, there were no differences between 8 and 14 days under cold storage for a given dosage. From a quarantine point of view, it is suggested to evaluate the combined effect of higher irradiation dosages and colder storage, as well as the effects of the treatments on fertility and fecundity of thrips
author	Araya,Jaime E Curkovic,Tomislav Zárate,Herman
author_facet	Araya,Jaime E Curkovic,Tomislav Zárate,Herman
author_sort	Araya,Jaime E
title	Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation
title_short	Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation
title_full	Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation
title_fullStr	Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation
title_full_unstemmed	Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation
title_sort	mortality of frankliniella occidentalis (pergande) (thysanoptera: thripidae) by gamma irradiation
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072007000200010
work_keys_str_mv	AT arayajaimee mortalityoffrankliniellaoccidentalispergandethysanopterathripidaebygammairradiation AT curkovictomislav mortalityoffrankliniellaoccidentalispergandethysanopterathripidaebygammairradiation AT zarateherman mortalityoffrankliniellaoccidentalispergandethysanopterathripidaebygammairradiation
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Mortality of Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) by Gamma Irradiation

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