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Factors affecting the reproduction and mass-rearing of sclerodermus brevicornis (Hymenoptera: Bethylidae), a natural enemy of exotic flat-faced longhorn beetles (Coleoptera: Cerambycidae: Lamiinae)

Jucker, Costanza; Hardy, Ian C.W.; Malabusini, Serena; de Milato, Silvia; Zen, Giacomo; Savoldelli, Sara; Lupi, Daniela

Authors

Costanza Jucker

IAN HARDY IAN.HARDY@NOTTINGHAM.AC.UK
Associate Professor & Reader in Animalpopulation Biology

Serena Malabusini

Silvia de Milato

Giacomo Zen

Sara Savoldelli

Daniela Lupi



Abstract

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Many species of long-horned beetles are invasive pests causing significant economic damage in agro-forestry systems. They spend the majority of their life-cycle concealed inside natural wood or wooden packaging materials and are largely protected from adverse environmental conditions and pesticide sprays. Biological control via parasitoid natural enemies including members of the bethylid genus Sclerodermus, has proven effective against some long-horned beetles that are invasive in China. In Europe, the biocontrol potential of native Sclerodermus species is being evaluated with a view to developing efficient mass-rearing techniques and then actively deploying them against invasive Asian beetles. Here, we continue evaluations of S. brevicornis by establishing that groups of females that have already reared offspring to emergence are capable of reproducing subsequent hosts and by evaluating the lifetime reproductive capacity of individual females provided with successive hosts. Additionally, we assess the laboratory shelf-life of adult females stored for different times at different temperatures including cold storage, and then assess the post-storage reproductive performance of groups of females provided with a single host. We found that adult female longevity declines with increasing storage temperature and that most aspects of subsequent performance are negatively affected by high temperatures. The adaptability to low temperature storage enhances the suitability of S. brevicornis to mass-rearing programs and thus biocontrol deployment.

Journal Article Type Article
Publication Date Oct 1, 2020
Journal Insects
Electronic ISSN 2075-4450
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 11
Issue 10
Article Number 657
APA6 Citation Jucker, C., Hardy, I. C., Malabusini, S., de Milato, S., Zen, G., Savoldelli, S., & Lupi, D. (2020). Factors affecting the reproduction and mass-rearing of sclerodermus brevicornis (Hymenoptera: Bethylidae), a natural enemy of exotic flat-faced longhorn beetles (Coleoptera: Cerambycidae: Lamiinae). Insects, 11(10), https://doi.org/10.3390/insects11100657
DOI https://doi.org/10.3390/insects11100657
Keywords quasi-social parasitoids; xylophagy; mass-rearing system; storage; temperature
Publisher URL https://www.mdpi.com/2075-4450/11/10/657
Additional Information Jucker, C., Hardy, I. C. W., Malabusini, S., de Milato, S., Zen, G., Savoldelli, S., & Lupi, D. (2020). Factors Affecting the Reproduction and Mass-Rearing of Sclerodermus brevicornis (Hymenoptera: Bethylidae), a Natural Enemy of Exotic Flat-Faced Longhorn Beetles (Coleoptera: Cerambycidae: Lamiinae). Insects, 11(10), 657. https://doi.org/10.3390/insects11100657

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Factors Affecting the Reproduction and Mass-Rearing of Sclerodermus brevicornis (Hymenoptera: Bethylidae), a Natural Enemy of Exotic Flat-Faced Longhorn Beetles (Coleoptera: Cerambycidae: Lamiinae) (1.9 Mb)
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