Dispersal of the parasitoid Habrobracon hebetor in storage warehouses
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Author
Publication date
2023-12-21ISSN
0022-474X
Abstract
Habrobracon hebetor is an ectoparasitoid that attacks the last-instar larvae of moth pests, such as Ephestia kuehniella, an important pest of grain and flour in storage facilities and in bakeries. To improve the efficacy of commercial releases of this parasitoid in store houses it is important to know how good its dispersal in real conditions of premises is. In this study, we evaluated the capacity of mated H. hebetor females to locate host larvae when released in two warehouses during the spring and summer seasons. Individual E. kuehniella larvae were placed at two distances from the release point, and the number of attacked larvae was assessed two weeks later. The results indicate that many parasitoids were able to reach larvae placed at a distance of 5 m and 20 m from the release point. We also observed that the proportion of attacked larvae increased with the density of released parasitoids. We conclude that the parasitoid could be released every 40 m to ensure good distribution in a warehouse.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
632 - Plant damage, injuries. Plant diseases. Pests, organisms injurious to plants. Plant protection
Pages
15
Publisher
Elsevier
Is part of
Journal of Stored Products Research
Citation
Riudavets, Jordi, María Teresa Martínez-Ferrer, José Miguel Campos-Rivela, Núria Agustí, and C. Castañé. 2024. “Dispersal of the Parasitoid Habrobracon Hebetor in Storage Warehouses.” Journal of Stored Products Research 105 (February): 102231. https://doi.org/10.1016/j.jspr.2023.102231.
Grant agreement number
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/IPM-GRAIN
MICINN/Programa Estatal para impulsar la investigación científico-técnica y su transferencia/PID2021-125284OR-I00/ES/ /
Program
Protecció Vegetal Sostenible
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2646]
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/