Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)

In Chile, the main Coleopteran species of stored grains are Sitophilus oryzae, S. zeamais, and S. granarius. The aim of this study was to evaluate under laboratory conditions the contact and fumigant insecticidal activity, as well as the repellent and antifeedant effects of Laureliopsis philippiana...

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Autores principales:	Norambuena,Carolina, Silva,Gonzalo, Urbina,Angélica, Figueroa,Inés, Rodríguez-Maciel,J. Concepción
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	Botanical insecticide contact toxicity fumigant effect stored grains Tepa weevil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300010
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spelling	oai:scielo:S0718-583920160003000102018-10-01Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)Norambuena,CarolinaSilva,GonzaloUrbina,AngélicaFigueroa,InésRodríguez-Maciel,J. Concepción Botanical insecticide contact toxicity fumigant effect stored grains Tepa weevil In Chile, the main Coleopteran species of stored grains are Sitophilus oryzae, S. zeamais, and S. granarius. The aim of this study was to evaluate under laboratory conditions the contact and fumigant insecticidal activity, as well as the repellent and antifeedant effects of Laureliopsis philippiana (Looser) Schodde essential oil against adults of Sitophilus spp. The main compounds identified in this essential oil were methyleugenol (61.38%) and safrole (14.76%). Based on the contact bioassay, the highest toxicity was achieved with the concentration of 4.0% (v/w), and S. oryzae was the most susceptible species. Emergence (F1) was reduced as the concentration of the essential oil increased, reaching maximums of 60% in the case of S. granarius and S. oryzae, and 36% in S. zeamais. Mortality by fumigant activity was 100% for the three species of Sitophilus. All of the treatments had a repellent effect. The highest antifeedant activity (82.9%) was recorded at 4.0% (v/w) concentration. Concentrations below 2.0% (v/w) did not affect germination of maize. Based on these results, L. philippiana essential oil has the potential to control Sitophilus spp. weevils.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.3 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300010en10.4067/S0718-58392016000300010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Botanical insecticide contact toxicity fumigant effect stored grains Tepa weevil
spellingShingle	Botanical insecticide contact toxicity fumigant effect stored grains Tepa weevil Norambuena,Carolina Silva,Gonzalo Urbina,Angélica Figueroa,Inés Rodríguez-Maciel,J. Concepción Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)
description	In Chile, the main Coleopteran species of stored grains are Sitophilus oryzae, S. zeamais, and S. granarius. The aim of this study was to evaluate under laboratory conditions the contact and fumigant insecticidal activity, as well as the repellent and antifeedant effects of Laureliopsis philippiana (Looser) Schodde essential oil against adults of Sitophilus spp. The main compounds identified in this essential oil were methyleugenol (61.38%) and safrole (14.76%). Based on the contact bioassay, the highest toxicity was achieved with the concentration of 4.0% (v/w), and S. oryzae was the most susceptible species. Emergence (F1) was reduced as the concentration of the essential oil increased, reaching maximums of 60% in the case of S. granarius and S. oryzae, and 36% in S. zeamais. Mortality by fumigant activity was 100% for the three species of Sitophilus. All of the treatments had a repellent effect. The highest antifeedant activity (82.9%) was recorded at 4.0% (v/w) concentration. Concentrations below 2.0% (v/w) did not affect germination of maize. Based on these results, L. philippiana essential oil has the potential to control Sitophilus spp. weevils.
author	Norambuena,Carolina Silva,Gonzalo Urbina,Angélica Figueroa,Inés Rodríguez-Maciel,J. Concepción
author_facet	Norambuena,Carolina Silva,Gonzalo Urbina,Angélica Figueroa,Inés Rodríguez-Maciel,J. Concepción
author_sort	Norambuena,Carolina
title	Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)
title_short	Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)
title_full	Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)
title_fullStr	Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)
title_full_unstemmed	Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)
title_sort	insecticidal activity of laureliopsis philippiana (looser) schodde (atherospermataceae) essential oil against sitophilus spp. (coleoptera curculionidae)
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300010
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Insecticidal activity of Laureliopsis philippiana (Looser) Schodde (Atherospermataceae) essential oil against Sitophilus spp. (Coleoptera Curculionidae)

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