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20 December 2023 Effects of different Ficus feeding experiences on host preference of Perina nuda larvae (Lepidoptera: Lymantriidae)
Songkai Liao, Haoyu Lin, Jiajin Wang, Qi Wang, Hongjian Wei, Hui Chen
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Abstract

Perina nuda (Lepidoptera: Lymantriidae) is a serious pest of banyan trees (Ficus spp.), which is distributed in South China, but little is known about the host preference on the different banyan tree species. To address this gap, we conducted experiments to investigate larval feeding preferences, assessing the impact of feeding experience in both choice and no-choice conditions. Fifth and sixth instars were exposed to 4 banyan species, and food intake, feeding area, and relative ingestion index were measured. Our findings reveal that Ficus concinna was the preferred host of fifth instars in choice tests, while sixth instars exhibited a preference for this host in no-choice tests. In contrast, fifth instars did not display a significant preference for any of the 4 species in no-choice tests. However, sixth instars fed on F. microcarpa, F. altissima, and F. concinna continued to exhibit a preference for the original host. These observations indicate that larval feeding preference changes with instar, and feeding experience contributes to a preference for the original host. Consequently, the feeding preference of P. nuda larvae is influenced by multiple factors, including instar and previous feeding experience. These findings enhance our understanding of P. nuda's ecological interactions and its potential impact on various banyan tree species.

Songkai Liao, Haoyu Lin, Jiajin Wang, Qi Wang, Hongjian Wei, and Hui Chen "Effects of different Ficus feeding experiences on host preference of Perina nuda larvae (Lepidoptera: Lymantriidae)," Journal of Economic Entomology 117(1), 209-217, (20 December 2023). https://doi.org/10.1093/jee/toad229
Received: 21 August 2023; Accepted: 6 December 2023; Published: 20 December 2023
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KEYWORDS
choice
Ficus spp.
host preference
no choice
Perina nuda
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