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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/5136

Title: INVESTIGACIÓN - EFECTIVIDAD DE EXTRACTOS BOTÁNICOS DE DIEZ PLANTAS SOBRE LA MORTALIDAD Y REPELENCIA DE LARVAS DE Rhynchophorus palmarum L., INSECTO PLAGA DEL PIJUAYO Bactris gasipaes KUNTH EN LA AMAZONÍA DEL PERÚ (Effectiveness of botanical extracts from ten plants on mortality and larval repellency of Rhynchophorus palmarum L., an insect pest of the Peach palm Bactris gasipaes Kunth in Amazonian Peru)
Authors: Perez D., Diana
Iannacone O., José
Keywords: Aristolochia pilosa, Bactris gasipaes, Bixa orellana, botanical insecticides, Brugmansia, Cassia fistula, Chondrodendron tomentosum, Euphorbia cotinifolia, Heliotropium indicum, Jathropa curcas, mortality, Paullinia clavigera, Peru, repellency, Rhynchoporus palmarum, Tradescantia zebrina, ethnobotanical.
Aristolochia pilosa, Bactris gasipaes, Bixa orellana, Brugmansia, Cassia fistula, Chondrodendron tomentosum, Euphorbia cotinifolia, Heliotropium indicum, insecticidas botánicos, Jathropa curcas, mortalidad, Paullinia clavigera, Perú, repelencia, Rhynchoporus palmarum, Tradescantia zebrina, etnobotánica.
Issue Date: 31-Dec-2006
Publisher: Instituto de Investigaciones Agropecuarias, INIA
Citation: Agricultura Técnica (ISSN: 0365-2807) Vol 66 Num 1
Abstract: Pest resistance to chemical insecticides has grown in recent years, which is the motive for the search for alternative methods, such as plants with larvicidal activity. The objective of this research was to evaluate mortality and larval repellency of Rhynchophorus palmarum L. (Curculionidae), a pest of the Peach palm Bactris gasipaes Kunth to ten plants with biocide potential: india heliotrope (Heliotropium indicum L., Boraginaceae), angels' trumpets (Brugmansia sp., Solanaceae), wandering jew (Tradescantia zebrina Hort. ex Bosse, Commelinaceae), nettles-purge (Jathropa curcas L., Euphorbiaceae), soapberry (Paullinia clavigera Schltdl., Sapindaceae), red spurge (Euphorbia cotinifolia L., Euphorbiaceae), annato (Bixa orellana , Bixaceae), golden shower (Cassia fistula L., Fabaceae), birthwort fruit (Aristolochia pilosa Kunth, Aristolochiaceae) and pareira (Chondrodendron tomentosum Ruiz & Pavon, Menispermaceae). Bioassays with R. palmarum were performed at 1, 4, 8, 12 and 24 h exposure, employing 660 larvae under laboratory conditions and aqueous botanical extracts of the plants at a 1:3 (w/v) ratio. At 24 h exposure, the highest mortality percentage of R. palmarum was observed with birthwort fruit (73.30%: liquefied leaves and stems), wandering jew (70%: liquefied leaves and stems) and pareira (60%: wood and bark in decoction). In the case of repellency, the highest effects were found in birthwort fruit (80%), pareira (73.30%) and wandering jew (71.70%). In addition, nettles-purge (liquefied seeds) produced only 3.3% mortality but significantly 55% repellency. The possibility of employing these botanical extracts in integrated management of R. palmarum is analyzed.
URI: http://hdl.handle.net/1807/5136
Other Identifiers: http://www.bioline.org.br/abstract?id=at06003
Rights: Copyright 2006 - Instituto de Investigaciones Agropecuarias, INIA (Chile).
Appears in Collections:Bioline International Legacy Collection

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