Control of Rhyzopertha dominica and Sitophilus zeamais in stored rice with different release rates of the larval parasitoid Anisopteromalus calandrae
Fecha de publicación
2020-04-03ISSN
0171-8177
Resumen
The presence of weevils is a concerning problem surrounding stored rice that is not well
controlled with available pesticides, and alternative solutions are demanded nowadays by industry. The introduction of natural enemies can be very effective in closed environments where the grain is stored. In this study, we evaluated the effectiveness of the larval parasitoid, Anisopteromalus calandrae (Howard) (Hymenoptera: Pteromalidae), in reducing the populations of two problematic internal feeders of rice, Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae) and Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae). Three parasitoid:host ratios (1:1, 2:1, 4:1) were tested in small containers with 2Kg of brown rice at 23 and 28ºC during two host generations. Afterwards, host and parasitoid emergence, and rice damage was evaluated. The parasitoid drastically reduced both pest numbers (up to 99% reduction compared with the control treatment without the parasitoid) and their associated damage to rice grains (insect-damaged kernels, frass production and mould presence). The parasitoid was very effective at 23 and 28ºC over S. zeamais and at 28ºC over R. dominica at all parasitoid:host ratios tested. In conclusion, the introduction of A. calandrae could avoid the development of abundant populations of R. dominica and S. zeamais, representing a good control alternative to be further developed for the containment of the two pests in stored rice
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
632 - Enfermedades y protección de las plantas
Páginas
1
Publicado por
Schweizerbart Science Publishers
Publicado en
Entomologia Generalis
Citación
Solá, Mireia, Jordi Riudavets, and Cristina Castañé. 2020. "Control Of Rhyzopertha Dominica And Sitophilus Zeamais In Stored Rice With Different Release Rates Of The Larval Parasitoid Anisopteromalus Calandrae". Entomologia Generalis. doi:10.1127/entomologia/2020/0899.
Número del acuerdo de la subvención
INIA/Programa Nacional de Proyectos de Investigación Fundamental/RTA2011-00025-C02-01/ES/El control biológico y los bioactivos volátiles para mejorar el control de plagas de almacén en industrias agroalimentarias/
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTA2014-00006-C02-01/ES/Plagas que afectan a la industria agroalimentaria: control biológico y detección de una especie invasiva/
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-095526-R-100/ES/Gestión integrada de plagas en el control biológico en grano almacenado/
Nota
Aquest recurs no està disponible en accés obert per política de l’editorial. This item isn't open access because of publisher's policy
Program
Protecció Vegetal Sostenible
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