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Lethal effect of blue light on Liposcelis bostrychophila (Psocoptera: Liposcelididae)

Lethal effect of blue light on Liposcelis bostrychophila (Psocoptera: Liposcelididae) We previously reported that blue light is lethal to various insect species. However, it was also revealed that effective blue light wavelength is species and growth-stage specific. We, therefore, investigated the lethal effects of blue light on booklice, Liposcelis bostrychophila Badonnel (Psocoptera: Liposcelididae), which frequently occur in food processing and storage facilities, where insecticides cannot often be used because of the risk of their contamination on the food products. Liposcelis bostrychophila eggs were killed by irradiation with 408–462-nm blue light and 378-nm UVA at 5 × 1018 photons·m−2·s−1, with 100% mortality. In particular, 420-nm blue light had a strong lethal effect, showing 96.5% mortality at 1.5 × 1018 photons·m−2·s−1. The adults were killed by irradiation with 378–494-nm light at 5 × 1018 photons·m−2·s−1. Irradiation with 378–440-nm and 462-nm light showed 96%–100% mortality at this photon flux density. In particular, 378 and 408-nm light notably exhibited strong lethal effects, showing 100% and 87% mortality, respectively, at 3 × 1018 photons·m−2·s−1. These results show that blue light irradiation is useful for controlling booklice occurrence in food facilities. Additionally, this study revealed for the first time that blue-light irradiation is lethal to hemimetabolous insects. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Entomology and Zoology Springer Journals

Lethal effect of blue light on Liposcelis bostrychophila (Psocoptera: Liposcelididae)

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References (60)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to The Japanese Society of Applied Entomology and Zoology 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
0003-6862
eISSN
1347-605X
DOI
10.1007/s13355-022-00814-5
Publisher site
See Article on Publisher Site

Abstract

We previously reported that blue light is lethal to various insect species. However, it was also revealed that effective blue light wavelength is species and growth-stage specific. We, therefore, investigated the lethal effects of blue light on booklice, Liposcelis bostrychophila Badonnel (Psocoptera: Liposcelididae), which frequently occur in food processing and storage facilities, where insecticides cannot often be used because of the risk of their contamination on the food products. Liposcelis bostrychophila eggs were killed by irradiation with 408–462-nm blue light and 378-nm UVA at 5 × 1018 photons·m−2·s−1, with 100% mortality. In particular, 420-nm blue light had a strong lethal effect, showing 96.5% mortality at 1.5 × 1018 photons·m−2·s−1. The adults were killed by irradiation with 378–494-nm light at 5 × 1018 photons·m−2·s−1. Irradiation with 378–440-nm and 462-nm light showed 96%–100% mortality at this photon flux density. In particular, 378 and 408-nm light notably exhibited strong lethal effects, showing 100% and 87% mortality, respectively, at 3 × 1018 photons·m−2·s−1. These results show that blue light irradiation is useful for controlling booklice occurrence in food facilities. Additionally, this study revealed for the first time that blue-light irradiation is lethal to hemimetabolous insects.

Journal

Applied Entomology and Zoology – Springer Journals

Published: May 1, 2023

Keywords: Booklice; Short-wavelength visible light; Light-emitting diodes; Irradiation; Psocoptera

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