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Bioactivity of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav.) Tul. and Laureliopsis philippiana (Looser) Schodde (Monimiacea) essential oils against Sitophilus zeamais Motschulsky

Authors :
J. Concepción Rodríguez-Maciel
Carolina Ramírez-Mendoza
Ángel Lagunes-Tejeda
Carmen Herrera-Rodríguez
Edgar Pastene-Navarrete
Luis Bustamante-Salazar
Inés Figueroa-Cares
Angélica Urbina-Parra
Itzel Becerra-Morales
Luciano Martínez-Bolaños
Gonzalo Silva-Aguayo
Source :
Chilean journal of agricultural research v.75 n.3 2015, SciELO Chile, CONICYT Chile, instacron:CONICYT, Chilean journal of agricultural research, Volume: 75, Issue: 3, Pages: 334-340, Published: SEP 2015, Chilean Journal of Agricultural Research, Vol 75, Iss 3, Pp 334-340 (2015)
Publication Year :
2015
Publisher :
Instituto de Investigaciones Agropecuarias, INIA, 2015.

Abstract

The maize weevil (Sitophilus zeamais Motschulsky) is one of most important pest of stored seeds worldwide, but its current control method is based on the use of synthetic insecticides, usually leading to undesirable problems such as insecticide residues on treated food, human intoxications, and insect resistance development. Therefore the search of friendly alternative methods is required. The aim of this study was to assess, under laboratory conditions, the insecticidal properties of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav.) Tul., and Laureliopsis philippiana (Looser) Schodde essential oils against S. zeamais. The phytochemical analysis of the three essential oils showed 1,8-cineole, safrole and methyleugenol as the common components; all of them documented with insecticidal activity from essential oils from other plant species. The highest toxicity (100% mortality) of these three oils acting as a contact insecticide was observed at 24 h exposure at 4% concentration. The estimated LC50 values for P. boldus, L. sempervirens, and L. philippiana were 0.37, 1.02, and 0.28 μL g-1, respectively. Peumus boldus exhibited the highest fumigant activity with 100% adult mortality at 30 μL oil L-1 air. At ≥ 0.5% (v/w) concentration, all essential oils showed repellent activity. These three essential oils showed a promissory insecticidal activity against the maize weevil.

Details

Language :
English
Database :
OpenAIRE
Journal :
Chilean journal of agricultural research v.75 n.3 2015, SciELO Chile, CONICYT Chile, instacron:CONICYT, Chilean journal of agricultural research, Volume: 75, Issue: 3, Pages: 334-340, Published: SEP 2015, Chilean Journal of Agricultural Research, Vol 75, Iss 3, Pp 334-340 (2015)
Accession number :
edsair.doi.dedup.....dfc8f402f87064be0dcce65ce4fe325a