Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky

Cereals constitute a relevant part of human and domestic animal diet. Under storage conditions, one of the most significant problems of these crops is insect pests as the maize weevil (Sitophilus zeamais Motschulsky). This insect species is usually controlled by means of synthetic insecticides but p...

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Autores principales:	Pinto,Juan J, Silva,Gonzalo, Figueroa,Inés, Tapia,Maritza, Urbina,Angélica, Rodríguez,J. Concepción, Lagunes,Angel
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	Bioinsecticide maize weevil peumo stored grains
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100007
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spelling	oai:scielo:S0718-583920160001000072018-10-01Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais MotschulskyPinto,Juan JSilva,GonzaloFigueroa,InésTapia,MaritzaUrbina,AngélicaRodríguez,J. ConcepciónLagunes,Angel Bioinsecticide maize weevil peumo stored grains Cereals constitute a relevant part of human and domestic animal diet. Under storage conditions, one of the most significant problems of these crops is insect pests as the maize weevil (Sitophilus zeamais Motschulsky). This insect species is usually controlled by means of synthetic insecticides but problems as toxic residues and resistance has led to the search for more friendly control alternatives such as botanical insecticides. The aim of this research was to evaluate, under laboratory conditions, the insecticidal properties of the powder and the essential oil of peumo (Cryptocarya alba [Molina] Looser; Lauraceae) leaves against S. zeamais. The variables assessed were toxicity by contact and fumigant activity, adult emergence (F1), repellent effect, and impact on wheat (Triticum aestivum L.) seed germination. A completely randomized design was used with five treatments and 10 replicates. The higher mortality levels were obtained at 80 g powder kg-1 grain and 40 mL essential oil kg-1 grain of C. alba; in both cases, the mortality of adult S. zeamais surpassed 80%. The emergence of adults S. zeamais (F1) was reduced by 100% at 80 g powder kg-1 grain and 40 mL essential oil kg-1 grain. Germination of wheat seeds treated with C. alba powder and essential oil was not affected. Both, the powder and the oil treatments showed repellent effect, but not fumigant activity.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100007en10.4067/S0718-58392016000100007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Bioinsecticide maize weevil peumo stored grains
spellingShingle	Bioinsecticide maize weevil peumo stored grains Pinto,Juan J Silva,Gonzalo Figueroa,Inés Tapia,Maritza Urbina,Angélica Rodríguez,J. Concepción Lagunes,Angel Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky
description	Cereals constitute a relevant part of human and domestic animal diet. Under storage conditions, one of the most significant problems of these crops is insect pests as the maize weevil (Sitophilus zeamais Motschulsky). This insect species is usually controlled by means of synthetic insecticides but problems as toxic residues and resistance has led to the search for more friendly control alternatives such as botanical insecticides. The aim of this research was to evaluate, under laboratory conditions, the insecticidal properties of the powder and the essential oil of peumo (Cryptocarya alba [Molina] Looser; Lauraceae) leaves against S. zeamais. The variables assessed were toxicity by contact and fumigant activity, adult emergence (F1), repellent effect, and impact on wheat (Triticum aestivum L.) seed germination. A completely randomized design was used with five treatments and 10 replicates. The higher mortality levels were obtained at 80 g powder kg-1 grain and 40 mL essential oil kg-1 grain of C. alba; in both cases, the mortality of adult S. zeamais surpassed 80%. The emergence of adults S. zeamais (F1) was reduced by 100% at 80 g powder kg-1 grain and 40 mL essential oil kg-1 grain. Germination of wheat seeds treated with C. alba powder and essential oil was not affected. Both, the powder and the oil treatments showed repellent effect, but not fumigant activity.
author	Pinto,Juan J Silva,Gonzalo Figueroa,Inés Tapia,Maritza Urbina,Angélica Rodríguez,J. Concepción Lagunes,Angel
author_facet	Pinto,Juan J Silva,Gonzalo Figueroa,Inés Tapia,Maritza Urbina,Angélica Rodríguez,J. Concepción Lagunes,Angel
author_sort	Pinto,Juan J
title	Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky
title_short	Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky
title_full	Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky
title_fullStr	Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky
title_full_unstemmed	Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky
title_sort	insecticidal activity of powder and essential oil of cryptocarya alba (molina) looser against sitophilus zeamais motschulsky
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100007
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Insecticidal activity of powder and essential oil of Cryptocarya alba (Molina) Looser against Sitophilus zeamais Motschulsky

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