Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions

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This study assessed the acute toxicity and repellence as well as feeding deterrence effect of volcanic ash (VA) on Sitophilus oryzae adults under laboratory conditions. VA resulted in significant adult mortality of S. oryzae. Acute toxicity of the VA was similar to that of commercially available dia...

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Autores principales: Buteler, Micaela, López García, Guillermo P., Pochettino, Arístides A., Stefanazzi, Natalia, Ferrero, Adriana A., Stadler, Teodoro
Formato: article artículo publishedVersion
Lenguaje:Inglés
Publicado: Asociación Argentina de Ecología 2021
Materias:
Repellence
Feeding deterrence
Acute toxicity
Coleoptera
Acceso en línea:http://hdl.handle.net/2133/20909
http://hdl.handle.net/2133/20909
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-20909
record_format dspace
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-121
collection Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language Inglés
orig_language_str_mv eng
topic Repellence
Feeding deterrence
Acute toxicity
Coleoptera
spellingShingle Repellence
Feeding deterrence
Acute toxicity
Coleoptera
Buteler, Micaela
López García, Guillermo P.
Pochettino, Arístides A.
Stefanazzi, Natalia
Ferrero, Adriana A.
Stadler, Teodoro
Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions
topic_facet Repellence
Feeding deterrence
Acute toxicity
Coleoptera
description This study assessed the acute toxicity and repellence as well as feeding deterrence effect of volcanic ash (VA) on Sitophilus oryzae adults under laboratory conditions. VA resulted in significant adult mortality of S. oryzae. Acute toxicity of the VA was similar to that of commercially available diatomaceous earth DiatomiD®demonstrating its insecticidal potential. Median lethal concentration values (LC50) obtained were 1610 [1449, 1778] mg/kg for VA and 1046 [916, 1168] mg/kg for DiatomiD®.Similarly to other inert dusts, VA particle size shows a bi-modal distribution and porosity which increases its surface area. Among the smallest particles, the highest volumetric loading was close to 5 μm with a distribution of smaller particles peaking at 0.5μm. Results indicate that VA is not repellent to S. oryzae. An “engagement” response or increased interaction of the insects with the VA treated surface was observed. However, feeding deterrence indices showed that both VA and diatomaceous earth had strong feeding deterrent action. Contact of insects with VA may lead to mortality by adherence of the VA particles to the insect cuticle. However, insects prefer feeding on sites without VA covered substrates and this could have a positive impact on its use for pest management.
format article
artículo
publishedVersion
author Buteler, Micaela
López García, Guillermo P.
Pochettino, Arístides A.
Stefanazzi, Natalia
Ferrero, Adriana A.
Stadler, Teodoro
author_facet Buteler, Micaela
López García, Guillermo P.
Pochettino, Arístides A.
Stefanazzi, Natalia
Ferrero, Adriana A.
Stadler, Teodoro
author_sort Buteler, Micaela
title Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions
title_short Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions
title_full Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions
title_fullStr Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions
title_full_unstemmed Insecticidal activity of volcanic ash against Sitophilus oryzae L. (Coleoptera: Curculionidae) under laboratory conditions
title_sort insecticidal activity of volcanic ash against sitophilus oryzae l. (coleoptera: curculionidae) under laboratory conditions
publisher Asociación Argentina de Ecología
publishDate 2021
url http://hdl.handle.net/2133/20909
http://hdl.handle.net/2133/20909
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