Winter fleshy‐fruited plants are the catalysts for spring populations of an invasive fruit fly DOI Creative Commons
Gwenaëlle Deconninck, Méghan Boulembert, Patrice Eslin

et al.

Ecological Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Abstract Winter is a critical bottleneck period for many insects and particularly pivotal pest species, being major regulator of their populations. In winter, insect fruit pests such as the invasive fly, Drosophila suzukii , not only have to cope with harsh environmental conditions but also need find alternative resources when cultivated are scarce. This study aimed disentangle relative roles climatic, landscape local factors affecting infestation rates winter spring host plants by D. . We assessed in Aucuba japonica Elaeagnus × submacrophylla (syn. ebbingei ), Mahonia aquifolium M. Viscum album north France, between January July 2022. emerged from all plant species except The fly was that A. E. co‐occurred V. subobscura Climatic (e.g. cumulative precipitation, number frost hours), composition grassland, shrubland water cover) variables resource abundance, vegetation architecture) influenced infestation, effects varying plants. fruiting succession these five effectively provides continuum March June, which particular, plays role before commercial become available strawberries, cherries). Non‐crop should be considered integrative management strategies they could catalyse populations early season.

Language: Английский

Winter fruit contribution to the performance of the invasive fruit fly Drosophila suzukii under different thermal regimes DOI Creative Commons

Jordy Larges,

Gwenaëlle Deconninck, Romain Ulmer

et al.

Insect Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Polyphagous insect species develop using multiple host plants. Often considered beneficial, polyphagy can also be costly as nutritional quality may vary. Drosophila suzukii (Matsumura) is an invasive that on numerous fruit over the annual cycle. Here, we assessed contribution of winter-available to development seasonal populations D. suzukii, under fluctuating late winter/early spring temperature regimes. We infested artificial diet and three suitable available in (Aucuba japonica, Elaeagnus ×submacrophylla, Viscum album) with larvae regimes: constant 20 °C, controlled regime 8-15 °C (12 h light at 8 12 dark 15 °C), uncontrolled outdoor during spring. As expected, fly performance was impaired by early spring-like environmental conditions, whatever diet, winter were suboptimal diets compared thermal regime. However, cold regimes, ranking supporting best changed, highlighting occurrence physiological trade-offs. Winter-acclimated females preferentially oviposited A. japonica and/or E. regime, which does not support preference-performance hypothesis. This finding discussed context management strategies.

Language: Английский

Citations

0
Winter fleshy‐fruited plants are the catalysts for spring populations of an invasive fruit fly DOI Creative Commons
Gwenaëlle Deconninck, Méghan Boulembert, Patrice Eslin

et al.

Ecological Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Abstract Winter is a critical bottleneck period for many insects and particularly pivotal pest species, being major regulator of their populations. In winter, insect fruit pests such as the invasive fly, Drosophila suzukii , not only have to cope with harsh environmental conditions but also need find alternative resources when cultivated are scarce. This study aimed disentangle relative roles climatic, landscape local factors affecting infestation rates winter spring host plants by D. . We assessed in Aucuba japonica Elaeagnus × submacrophylla (syn. ebbingei ), Mahonia aquifolium M. Viscum album north France, between January July 2022. emerged from all plant species except The fly was that A. E. co‐occurred V. subobscura Climatic (e.g. cumulative precipitation, number frost hours), composition grassland, shrubland water cover) variables resource abundance, vegetation architecture) influenced infestation, effects varying plants. fruiting succession these five effectively provides continuum March June, which particular, plays role before commercial become available strawberries, cherries). Non‐crop should be considered integrative management strategies they could catalyse populations early season.

Language: Английский

Citations

1