scholarly journals Growth and mortality of the oak processionary moth, Thaumetopoea processionea L., on two oak species: direct and trait-mediated effects of host and neighbour species identity

2019 ◽  
Author(s):  
Thomas Damestoy ◽  
Xoaquín Moreira ◽  
Hervé Jactel ◽  
Elena Valdes-Correcher ◽  
Christophe Plomion ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
C:N Ratio ◽  
Interactive Effects ◽  
Chemical Analyses ◽  
Species Identity ◽  
Mixed Stands ◽  
Processionary Moth ◽  
Thaumetopoea Processionea ◽  
Oak Processionary Moth ◽  
Bud Phenology

AbstractThe presence of heterospecific neighbours can affect damage caused by pest insects on focal plants. However, how plant neighbours influence herbivore performance is poorly understood. We tested the independent and interactive effects of tree species identity and tree neighbour type (conspecific vs. heterospecific) on the performance of a major oak pest, the oak processionary moth larvae (OPM, Thaumetopoea processionea) fed on Quercus robur and Q. petraea. We performed a factorial greenhouse experiment in which we grew two oak saplings per pot, either from the same species or from both species. We quantified growth and mortality of OPM larvae, leaf phenolic compounds, C:N ratio and bud phenology. OPM larvae performed significantly better on Q. petraea than on Q. robur, regardless of plant neighbour type. Phenolic compounds and C:N, but not phenology, differed between oak species and neighbour species identity. Only bud phenology had a significant effect on OPM performance, which was better when young larvae had access to recently unfolded leaves, regardless of oak species and neighbour identity. Although oak neighbour identity altered the expression of leaf traits, this effect had no measurable consequences on OPM performance. However, further studies should consider the effect of oak species neighbour on OPM preferences for either Q. robur or Q. petraea, in pure and mixed stands, before translating current results into recommendations for forest management.Author ContributionTD and BC conceived the study and acquired the data. TD performed experiment and analysed the data. EV, TD and XM performed the chemical analyses. TD and BC drafted the first version of the manuscript and all authors wrote the final version of the manuscript.TD, BC conceived and designed research. TD performed experiment and analysed data. EV, TD, XM performed the chemical analyses. TD, BC wrote the manuscript. All authors read and approved the manuscript.AM and DB conceived and designed research. AM and BB conducted experiments. GR contributed new reagents or analytical tools. AM, BB and GR analysed data. AM wrote the manuscript. All authors read and approved the manuscript.

scholarly journals Estimating expansion of the range of oak processionary moth ( Thaumetopoea processionea ) in the UK from 2006 to 2019

2021 ◽  
Author(s):  
Yevhen F. Suprunenko ◽  
Matthew D. Castle ◽  
Cerian R. Webb ◽  
Julia Branson ◽  
Andrew Hoppit ◽  
...  
Keyword(s):  
Processionary Moth ◽  
Thaumetopoea Processionea ◽  
Oak Processionary Moth ◽  
The Uk

Thaumetopoea processionea (oak processionary moth).

2021 ◽  
Author(s):  
Claire Beverley
Keyword(s):  
Animal Health ◽  
European Countries ◽  
Thaumetopoea Pityocampa ◽  
Adult Males ◽  
Processionary Moth ◽  
Thaumetopoea Processionea ◽  
Oak Trees ◽  
Oak Processionary Moth ◽  
The Uk ◽  
Almost All

Abstract T. processionea, commonly known as the oak processionary moth, is a major pest in many European countries and threatens the health of oak trees. The common and scientific names of T. processionea refer to the behaviour of the larvae to form long processions. The larvae cause severe defoliation, reducing the viability of oak trees. They also pose a risk to both human and animal health because they shed poisonous hairs, which can result in severe allergic reactions, amongst other health problems. The moth is native to central and southern Europe but is now present in almost all European countries and also in parts of the Middle East. EPPO issued a Pest Risk Analysis in 2007 for the UK in response to infestations of the species in Europe from 2006. At this time, infestations of the moth were observed on a range of oak (Quercus) species in London. The adult males are strong fliers and can fly long distances, such as from France to the UK (Evans, 2007). Host plants of this pest include many species of deciduous Quercus, and to a much lesser degree, Betula, Carpinus, Castanea, Corylus, Crataegus, Robinia and Fagus; plants commonly found in forests, woods or ornamental plantations in the UK, for example (Evans, 2007). Therefore, areas where these plants are present and offer a suitable climate for pest development are likely to be under threat from T. processionea. Various pines have been reported as hosts, but such records are suspect and are probably the result of confusion with the pine processionary (Thaumetopoea pityocampa).

scholarly journals Oak processionary moth (Thaumetopoea processionea): Fig 1.

2015 ◽  
Vol 177 (3) ◽  
pp. 79.2-79 ◽  
Author(s):  
Amanda Carson ◽  
Richard Irvine ◽  
Aiden P. Foster
Keyword(s):  
Processionary Moth ◽  
Thaumetopoea Processionea ◽  
Oak Processionary Moth

scholarly journals Detecting host-parasitoid interactions in an invasive Lepidopteran using nested tagging DNA-metabarcoding

2015 ◽  
Author(s):  
James JN Kitson ◽  
Christoph Hahn ◽  
Richard J Sands ◽  
Nigel A Straw ◽  
Darren M Evans ◽  
...  
Keyword(s):  
Invasive Species ◽  
Species Identity ◽  
Data Set ◽  
Larval Stages ◽  
Processionary Moth ◽  
Parasitism Rates ◽  
Dna Metabarcoding ◽  
Oak Processionary Moth ◽  
Identification Tags ◽  
The Uk

AbstractDetermining the host-parasitoid interactions and parasitism rates for invasive species entering novel environments is an important first step in assessing potential routes for biocontrol and integrated pest management. Conventional insect rearing techniques followed by taxonomic identification are widely used to obtain such data, but this can be time consuming and prone to biases. Here we present a Next Generation Sequencing approach for use in ecological studies which allows for individual level metadata tracking of large numbers of invertebrate samples through the use of hierarchically organised molecular identification tags. We demonstrate its utility using a sample data set examining both species identity and levels of parasitism in late larval stages of the Oak Processionary Moth (Thaumetopoea processionea - Linn. 1758), an invasive species recently established in the UK. Overall we find that there are two main species exploiting the late larval stages of Oak Processionary Moth in the UK with the main parasitoid (Carcelia iliaca-Ratzeburg, 1840) parasitising 45.7% of caterpillars, while a rare secondary parasitoid (Compsilura conccinata-Meigen, 1824) was also detected in 0.4% of caterpillars. Using this approach on all life stages of the Oak Processionary Moth may demonstrate additional parasitoid diversity. We discuss the wider potential of nested tagging DNA-metabarcoding for constructing large, highly-resolved species interaction networks.

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