Fitness comparison of Plutella xylostella on original and marginal hosts using age‐stage, two‐sex life tables

The diamondback moth, Plutella xylostella, is an important agricultural pest that severely damages cruciferous vegetables. Although previously considered a threat only to Brassica species, P. xylostella has been observed to feed on noncruciferous vegetables. Here, we established a population of P. x...

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Bibliographic Details
Published in:Ecology and evolution 2021-07, Vol.11 (14), p.9765-9775
Main Authors: Yang, Fei‐Ying, Chen, Jun‐Hui, Ruan, Qian‐Qian, Wang, Bei‐Bei, Jiao, Lu, Qiao, Qing‐Xuan, He, Wei‐Yi, You, Min‐Sheng
Format: Article
Language:English
Subjects:
Acclimation
Acclimatization
adaptation
Age
Brassica
Butterflies & moths
Canola
Cultivars
diamondback moth
Fecundity
Feeding
Fitness
Host plants
host shift
Laboratories
Life span
Life tables
Nutrition
Original Research
pea
Peas
Pisum sativum
Plutella xylostella
Population
Populations
Pupae
radish
Radishes
Raphanus sativus
Sex
Survival
Tables (data)
Vegetables
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Summary:The diamondback moth, Plutella xylostella, is an important agricultural pest that severely damages cruciferous vegetables. Although previously considered a threat only to Brassica species, P. xylostella has been observed to feed on noncruciferous vegetables. Here, we established a population of P. xylostella on the pea Pisum sativum (PxP population). We compared this PxP population's performance on the pea host plant to a population (PxR) reared on the original host plant radish (Raphanus sativus) for several generations using an age‐stage, two‐sex life table and analyzed the correlations between different fitness parameters. In the 1st generation of the PxP population, survival rate of immature stage was 17%, while the survival rate of PxR was 68%; the duration of the 4th larval instar (5.30 d) and mortality (25%) of this generation were significantly longer (2.8 d) and higher (1%) than that of PxR, respectively (both p 
ISSN:2045-7758
2045-7758
DOI:10.1002/ece3.7804