Invasions by the palm borer moth Paysandisia archon in Italy and assessment of its trophic spectrum

Mori, Emiliano; Rustici, Pamela; Dapporto, Leonardo; Pasquali, Lorenzo; Petrucci, Filippo; Mazza, Giuseppe

doi:10.1007/s10530-022-02981-6

Cited by 4 publications

(1 citation statement)

References 51 publications

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“…In addition to the potential limitation posed by climate change on the spread of T. fortunei , increasing evidence suggests that non‐native species can decline over time due to the accumulation of natural enemies such as pathogens and pests (Crous et al., 2017; Blossey et al., 2021), as was already shown for monodominant palm stands (Milosavljević et al., 2019; Fehr et al., 2020). For example, it is likely only a matter of time until the palm moth ( Paysandisia archon ), which is already infesting palms in the Insubrian region (Lake Garda; Mori et al., 2023) and the red palm weevil ( Rhynchophorus ferrugineus ), which is attacking palms in the relatively close Mediterranean region (Buchsbaum & Fuchs, 2016; Milosavljević et al., 2019; Muñoz‐Adalia & Colinas, 2020) will arrive on the southern slope of the Alps, with unknown impacts on cultivated and naturalized palms. Also, large mammal herbivory could affect the spreading dynamics of non‐native plant species (Xu et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

The alien Chinese windmill palm (Trachycarpus fortunei) impacts forest vegetation and regeneration on the southern slope of the European Alps

Fehr,

Conedera,

Fratte

et al. 2024

Applied Vegetation Science

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QuestionsDoes the non‐native evergreen Chinese windmill palm (Trachycarpus fortunei) affect native plant community and forest regeneration in deciduous forests? Are effects modulated by soil moisture? What are the implications for forest management and nature conservation?LocationBroadleaved deciduous low‐elevation forests on the southern slope of the Alps across the Swiss–Italian border region.MethodsWe compared the native herbaceous and woody plant composition, species richness, Shannon diversity and abundance at ten deciduous forest sites on two moisture conditions (six mesic–moist sites and four mesic–dry sites). Each site consisted of three plots measuring 400 m2 along a gradient of T. fortunei presence, ranging from “dominant”, to “present but not dominant” to “absent”.ResultsIn mesic–moist forests with high densities of T. fortunei, species richness and Shannon diversity of native plants and recruiting woody species in the herb and shrub layers were significantly reduced compared to similar sites where T. fortunei is absent or not dominant. However, in mesic–dry forests these variables did not differ between palm‐invaded and uninvaded plots. The abundance of recruiting woody individuals did not differ between plots invaded by palms and uninvaded control plots in either forest type.ConclusionsWe expect detrimental consequences for plant diversity in mesic–moist alluvial forests with high T. fortunei densities and few detrimental consequences in the more widespread non‐alluvial forests. We recommend multifaceted management, including targeted eradication in alluvial forests identified as hotspots of native plant diversity, accompanied by hands‐off management of T. fortunei in non‐alluvial forests, recognizing the ongoing and inevitable “laurophyllisation”; a biome shift toward mixed‐evergreen forest that may increase ecosystem climate resilience under ongoing climatic warming.

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Section: Discussionmentioning

confidence: 99%

The alien Chinese windmill palm (Trachycarpus fortunei) impacts forest vegetation and regeneration on the southern slope of the European Alps

Fehr,

Conedera,

Fratte

et al. 2024

Applied Vegetation Science

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Comparison of different attract‐and‐kill device densities to control the adult population of Popillia japonica (Coleoptera: Scarabaeidae)

Paoli,

Barbieri,

Iovinella

et al. 2024

Pest Management Science

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BACKGROUNDPopillia japonica Newman is a scarab beetle native to Japan that is considered a serious pest outside its native range. It can feed on more than 400 host plants and spread about 10 km per year in invaded territories, therefore it is considered the second most important quarantine pest in Europe. Both chemical and biological insecticides have been used for control, with variable results. Despite ongoing efforts, P. japonica remains a threat in invaded countries, and it is necessary to test more effective and sustainable solutions in the context of integrated pest management. Here we present a study on long‐lasting insecticide‐treated nets (LLINs) assembled in semiochemical‐baited attract‐and‐kill devices (A&Ks) as a means to control adults of P. japonica with low environmental impact. This study complements previous ones in which we first evaluated the effectiveness of the LLINs in the laboratory and then tested both effectiveness and duration in field‐exposed A&Ks against P. japonica. In the present work we compared the effectiveness of three different densities of A&Ks per hectare in areas where the population of P. japonica was numerically homogeneous.RESULTSThe different densities of A&K (1, 2, 4 A&Ks per ha) resulted in an overall reduction of the population of P. japonica by about two thirds in comparison to the control area.CONCLUSIONSThis study suggests that the use of one A&K per hectare, requiring minimal management effort, is an effective ratio for reducing local populations of P. japonica. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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First report of Rhabditis (Rhabditella) axei with the invasive palm borer Paysandisia archon

Sciandra,

Amoriello,

Degli

et al. 2024

Journal of Nematology

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Rhabditis (Rhabditella) axei is a free-living, pseudoparasitic, necromenic, and parasitic nematode, depending on the host. This species feeds mainly on bacteria present in decaying organic matter, soil, and other substrates; however, in its parasitic form, it can colonize some species of snails. Moreover, the presence of R. axei has also been detected in birds and mammals, including humans. In 2021–2023, during monitoring of the palm borer Paysandisia archon in Central Italy, R. axei emerged from dead larvae of this alien invasive moth and was extracted from palm fibres of Trachycarpus fortunei in three independent sites. The nematode was identified by morphological and morphometric analyses. Molecular analyses using SSU and LSU gene fragments were used to confirm the identification and to perform Bayesian reconstruction of the phylogeny. Each sampling site showed a unique haplotype. Concerning the pathogenicity of this nematode against insects, the test performed on Galleria mellonella larvae did not show any entomopathogenic effect. This is the first time that R. axei was found associated with P. archon, and this recurrent association was discussed.

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Invasions by the palm borer moth Paysandisia archon in Italy and assessment of its trophic spectrum

Cited by 4 publications

References 51 publications

The alien Chinese windmill palm (Trachycarpus fortunei) impacts forest vegetation and regeneration on the southern slope of the European Alps

The alien Chinese windmill palm (Trachycarpus fortunei) impacts forest vegetation and regeneration on the southern slope of the European Alps

Comparison of different attract‐and‐kill device densities to control the adult population of Popillia japonica (Coleoptera: Scarabaeidae)

First report of Rhabditis (Rhabditella) axei with the invasive palm borer Paysandisia archon

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