Insecticide effect of leaf extracts from Schinus molle on larvae of Gonipterus platensis

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dc.creatorÍtalo Chiffelle
dc.creatorAmanda Huerta
dc.creatorCarla Andrea Sandoval
dc.creatorJaime Eduardo Araya
dc.date2017
dc.date.accessioned2026-07-07T03:29:34Z
dc.descriptionThe insecticide effect of new and mature leaf extracts obtained with ethanol and water from Schinus molle L. (Anacardiaceae) were evaluated at 0.5 - 3.4% w/v and 0.5 - 4.8% w/v, respectively, onto larvae third instar of Gonipterus platensis Marelli (Coleoptera: Curculionidae), an important defoliating pest on eucalypt (Eucalyptus spp., Myrtaceae) plantations. The extracts were applied to eucalypt leaves that were given as food to the larvae, and their effects were determined by determining mortality and the LC50 and LT50 by Probit analysis on the larvae. Both extracts were effectives, especially those from new leaves; the ethanol extract from them caused the greatest mortality. The highest concentrations of the water and ethanol extracts (3.4 and 4.8% w/v, respectively) caused average mortality of 100 and 88.9% with new leaf extracts, and 94.7 and 86.4% with mature ones, respectively. The insecticide effectiveness 6 d after treatment in decreasing order were: new leaves-ethanol (LC50 = 0.79% w/v), new leaves-water (LC50= 2.08% w/v), mature leaves-ethanol (LC50=0.63% w/v) mature leaves-water (LC50=12.01% w/v). The LT50 at 1.7% w/v was 5.2 d in new leaves-ethanol. These results of the insecticide effect on G. platensis larvae allow to consider the leaf extracts from S. molle an interesting alternative as a bioinsecticide source for an integrated pest management system of this pest.
dc.formatapplication/pdf
dc.identifier0304-2847
dc.identifierhttps://www.redalyc.org/articulo.oa?id=179955074004
dc.identifierhttps://www.redalyc.org/journal/1799/179955074004/
dc.identifierhttps://www.redalyc.org/journal/1799/179955074004/html/
dc.identifierhttps://www.redalyc.org/journal/1799/179955074004/179955074004.epub
dc.identifierhttps://www.redalyc.org/journal/1799/179955074004/movil
dc.identifier10.15446/rfna.v70n3.58272
dc.identifier.urihttp://hdl.handle.net/123456789/435228
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1799
dc.rightsRevista Facultad Nacional de Agronomía - Medellín
dc.sourceRevista Facultad Nacional de Agronomía - Medellín (Colombia) Num.3 Vol.70
dc.subjectAgrociencias
dc.titleInsecticide effect of leaf extracts from Schinus molle on larvae of Gonipterus platensis
dc.typeartículo científico

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Revista Facultad Nacional de Agronomía - Universidad Nacional de Colombia