Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae

ABSTRACT Xanthogaleruca luteola (Coleoptera: Chrysomelidae) is an aggressive defoliating pest on elms (Ulmus sp.) worldwide. We evaluated the antifeedant and insecticidal effects of ethanolic and aqueous extracts from Melia azedarach L. green fruits and leaves of Peumus boldus Molina, on X. luteola...

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Autores principales:	Chiffelle,Ítalo, Huerta,Amanda, Bobadilla,Valentina, Macuada,Gonzalo, Araya,Jaime E., Curkovic,Tomislav, Ceballos,Ricardo
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Antifeedant effects insecticidal effects Melia azedarach Peumus boldus Xanthogaleruca luteola.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400609
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spelling	oai:scielo:S0718-583920190004006092019-11-19Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvaeChiffelle,ÍtaloHuerta,AmandaBobadilla,ValentinaMacuada,GonzaloAraya,Jaime E.Curkovic,TomislavCeballos,Ricardo Antifeedant effects insecticidal effects Melia azedarach Peumus boldus Xanthogaleruca luteola. ABSTRACT Xanthogaleruca luteola (Coleoptera: Chrysomelidae) is an aggressive defoliating pest on elms (Ulmus sp.) worldwide. We evaluated the antifeedant and insecticidal effects of ethanolic and aqueous extracts from Melia azedarach L. green fruits and leaves of Peumus boldus Molina, on X. luteola third instar larvae, the most harmful stage. Five doses of the extracts were applied to fresh elm leaves to determine antifeedant effect evaluating consumed foliar area at 24 h. Insecticidal activity was assessed through daily mortality for 14 d. For each extract an antifeedant index, relative to respective control, and mean lethal concentrations (LC50) were calculated. We found a direct relationship between concentration and both antifeedant and insecticidal effects for all extracts. A dose of 6.1% w/v of ethanolic extract of M. azedarach green fruits significantly inhibited larvae feeding behavior by 91% with a LC50 1.49% at day 8. On the other hand, 3.4% w/v of ethanolic extract of P. boldus inhibited larvae feeding behavior by 81% and LC50 at day 8 was 0.92% w/v. All extracts showed insecticidal effect on X. luteola larvae, and the highest mortalities observed were 79% and 71% with ethanolic and aqueous extracts of P. boldus, respectively. Antifeedant and insecticidal effects observed with M. azedarach green fruits and P. boldus leaf extracts on X. luteola third instar larvae, support the development of botanical insecticides from both tree species in order to contribute to its integrated management.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.4 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400609en10.4067/S0718-58392019000400609
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Antifeedant effects insecticidal effects Melia azedarach Peumus boldus Xanthogaleruca luteola.
spellingShingle	Antifeedant effects insecticidal effects Melia azedarach Peumus boldus Xanthogaleruca luteola. Chiffelle,Ítalo Huerta,Amanda Bobadilla,Valentina Macuada,Gonzalo Araya,Jaime E. Curkovic,Tomislav Ceballos,Ricardo Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae
description	ABSTRACT Xanthogaleruca luteola (Coleoptera: Chrysomelidae) is an aggressive defoliating pest on elms (Ulmus sp.) worldwide. We evaluated the antifeedant and insecticidal effects of ethanolic and aqueous extracts from Melia azedarach L. green fruits and leaves of Peumus boldus Molina, on X. luteola third instar larvae, the most harmful stage. Five doses of the extracts were applied to fresh elm leaves to determine antifeedant effect evaluating consumed foliar area at 24 h. Insecticidal activity was assessed through daily mortality for 14 d. For each extract an antifeedant index, relative to respective control, and mean lethal concentrations (LC50) were calculated. We found a direct relationship between concentration and both antifeedant and insecticidal effects for all extracts. A dose of 6.1% w/v of ethanolic extract of M. azedarach green fruits significantly inhibited larvae feeding behavior by 91% with a LC50 1.49% at day 8. On the other hand, 3.4% w/v of ethanolic extract of P. boldus inhibited larvae feeding behavior by 81% and LC50 at day 8 was 0.92% w/v. All extracts showed insecticidal effect on X. luteola larvae, and the highest mortalities observed were 79% and 71% with ethanolic and aqueous extracts of P. boldus, respectively. Antifeedant and insecticidal effects observed with M. azedarach green fruits and P. boldus leaf extracts on X. luteola third instar larvae, support the development of botanical insecticides from both tree species in order to contribute to its integrated management.
author	Chiffelle,Ítalo Huerta,Amanda Bobadilla,Valentina Macuada,Gonzalo Araya,Jaime E. Curkovic,Tomislav Ceballos,Ricardo
author_facet	Chiffelle,Ítalo Huerta,Amanda Bobadilla,Valentina Macuada,Gonzalo Araya,Jaime E. Curkovic,Tomislav Ceballos,Ricardo
author_sort	Chiffelle,Ítalo
title	Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae
title_short	Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae
title_full	Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae
title_fullStr	Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae
title_full_unstemmed	Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae
title_sort	antifeedant and insecticidal effects of extracts from melia azedarach fruits and peumus boldus leaves on xanthogaleruca luteola larvae
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400609
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Antifeedant and insecticidal effects of extracts from Melia azedarach fruits and Peumus boldus leaves on Xanthogaleruca luteola larvae

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