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Título
Insecticidal Properties of Ocimum basilicum and Cymbopogon winterianus against Acanthoscelides obtectus, Insect Pest of the Common Bean (Phaseolus vulgaris, L.)
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Insects
Número de la revista
5
Cita Bibliográfica
Rodríguez-González, Á., Álvarez-García, S., González-López, Ó., da Silva, F., & Casquero, P. A. (2019). Insecticidal properties of Ocimum basilicum and Cymbopogon winterianus against Acanthoscelides obtectus, insect pest of the common bean (Phaseolus vulgaris, L.). Insects, 10(5). https://doi.org/10.3390/INSECTS10050151
Editorial
MDPI
Fecha
2019
Resumen
[EN] The bean weevil, Acanthoscelides obtectus Say (Coleoptera: Chrysomelidae: Bruchinae),
causes severe post-harvest losses in the common bean, Phaseolus vulgaris L. The control of this insect
is still poor and involves the use of conventional insecticides. There is an increasing demand in the
search for new active substances and products for pest control towards reduction of adverse e ects
on human health and the environment. The protection of grains with alternative products, such as
essential oils, is a possible alternative to meet the needs described above. Therefore, this investigation
evaluated the applications of basil, Ocimum basilicum, and citronella, Cymbopogon winterianus, essential
oils for A. obtectus control. These essential oils significantly reduced the bean weight losses and the
number of beans damaged by A. obtectus at higher doses than 60 or 120 L/sample. The number of
holes per bean did not di er between the doses of basil essential oil, not even at the dose of 60 L,
while it was higher at 120 L, probably due to a lower capacity of movement of the insects treated
with this dose and/or the oil’s direct or indirect e ects on the insects. Basil and citronella oils exhibited
similar patterns of insecticidal activity over the insect, both directly in adult insects or indirectly
over bean seeds. These essential oils a ected the development of A. obtectus since the greatest doses
applied on beans decreased the emergence of the bean weevil. The results prove the insecticidal
capacity of the tested essential oils and hence their potential as active substances against A. obtectus in
environmentally low risk pest control strategies. Supplementary trials should be conducted under
real storage conditions.
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