Article
Entomology
Thomas Damestoy, Xoaquin Moreira, Herve Jactel, Elena Valdes-Correcher, Christophe Plomion, Bastien Castagneyrol
Summary: Oak processionary moth larvae performed better on Q. petraea than on Q. robur, regardless of plant neighbour type. Oak neighbours altered the expression of leaf traits associated with defence, but this had no measurable consequences on OPM performance.
ENTOMOLOGIA GENERALIS
(2021)
Article
Agriculture, Multidisciplinary
Nigel A. Straw, Jack Forster
Summary: The effectiveness of ground-based applications of Bacillus thuringiensis var. kurstaki (Btk) for controlling oak processionary moth (OPM) was evaluated over a 4-year period. Two applications of Btk, applied 7-10 days apart in the spring, reduced the numbers of larval nests by 86-94%. However, the effects of treatment were relatively short-lived, as the trees were quickly re-colonised by adult OPM.
ANNALS OF APPLIED BIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Chiara Ferracini, Cristina Pogolotti, Monica Vercelli, Eleonora Vittoria Fontana, Valerio Saitta, Serena Gallizia, Ivan Rollet
Summary: Investigations were conducted on the egg parasitoid complex of the pine processionary moth in NW Italy to determine the species composition, seasonal emergence, and parasitism rate. Altitude and summer temperatures were found to influence the egg batches parameters and parasitism rate. The findings highlight the importance of further research on the regulating effect of parasitoids in reducing the population of the pine processionary moth.
BIOCONTROL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
J. Julio Camarero, Jacques Tardif, Antonio Gazol, France Conciatori
Summary: This study analyzes tree-ring data from 14 sites in Teruel, eastern Spain, and finds that the pine processionary moth has not expanded its distribution as expected with climatic warming, nor has the frequency of outbreaks increased. Furthermore, severe defoliation events are positively related to the winter North Atlantic Oscillation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Forestry
Chiara Ferracini, Valerio Saitta, Gabriele Rondoni, Ivan Rollet
Summary: This study conducted investigations in NW Italy over a five-year period and found that environmental variables and biological parameters affect the population dynamics of the pine processionary moth. The collected data will be valuable for developing predictive risk models and implementing timely and cost-effective countermeasures, given its environmental and sanitary importance.
Article
Forestry
Safia Sebti, Luis Bonifacio, Gahdab Chakali
Summary: The sustainable protection of cedar stands in Chrea National Park relies on the stability of the ecosystem. Outbreaks of Thaumetopoea pityocampa are a major threat, influenced by high population fecundity, changes in natural enemies' diversity, and global interactions within the ecosystem. Egg parasitoids play a crucial role in the biological control of T. pityocampa.
Article
Entomology
Yevhen F. Suprunenko, Matthew D. Castle, Cerian R. Webb, Julia Branson, Andrew Hoppit, Christopher A. Gilligan
Summary: The expansion of oak processionary moth (OPM) in South-East England has been accelerating since 2015, with potential factors including the species' natural dispersal capabilities and environmental heterogeneity.
AGRICULTURAL AND FOREST ENTOMOLOGY
(2022)
Article
Forestry
Plamen Mirchev, Georgi Georgiev, Margarita Georgieva, Ivailo Markoff, Gergana Zaemdzhikova, Maria Matova
Summary: The average impact of egg parasitoids on the pine processionary moth in Bulgaria was 13.8%, with two main parasitoids (O. pityocampae and B. servadeii) parasitizing about 90% of host eggs. The impact was almost two times higher in old habitats compared to new ones, with O. pityocampae and B. servadeii having significant impacts in new habitats and decreasing impact with altitude.
IFOREST-BIOGEOSCIENCES AND FORESTRY
(2021)
Article
Entomology
Jean-Claude Martin, Xavier Mesmin, Maurane Buradino, Jean-Pierre Rossi, Carole Kerdelhue
Summary: Climate change affects the life cycle of many species, and the response to yearly weather variation can either be beneficial or maladaptive. A study on pine processionary moths in southern France found that individuals from higher elevations emerged earlier than those from lower elevations, indicating local adaptation. Additionally, temperature variations throughout the year also influenced the phenology of the moths. The study identified synchronization mechanisms and highlighted the complexity of the effects of spatial and temporal temperature variations on adult emergence.
AGRICULTURAL AND FOREST ENTOMOLOGY
(2022)
Article
Entomology
Khaled Bouzar-Essaidi, Manuela Branco, Andrea Battisti, Andre Garcia, Maria Rosario Fernandes, Younes Chabane, Mourad Bouzemarene, Leila Benfekih
Summary: The study investigated egg parasitism of Thaumetopoea pityocampa in pine and cedar forests in Algeria, finding that parasitism rates were influenced by tent density, forest cover, and temperature. Different parasitoid species had varying effects on parasitism rates, highlighting the complexity of host-parasitoid interactions. Further research is needed to explore the impacts of parasitoids on host population dynamics.
AGRICULTURAL AND FOREST ENTOMOLOGY
(2021)
Article
Forestry
Paula Halbig, Anne-Sophie Stelzer, Peter Baier, Josef Pennerstorfer, Horst Delb, Axel Schopf
Summary: The incidence of oak processionary moth in Central Europe has been increasing, posing severe threats to oak trees, humans, and animals. To address this issue, researchers have developed an online early warning system that provides phenological forecasts and decision support for the protection of oak trees and human health.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Zoology
Plamen Mirchev, Georgi Georgiev, Gergana Zaemdzhikova, Margarita Georgieva, Maria Matova
Summary: The pine processionary moth Thaumetopoea pityocampa was first discovered in a village in South-Western Bulgaria in 2010. Studies on egg parasitoids revealed a significant impact on the moth population, with the main parasitoid gradually decreasing over the years and a variety of different parasitoid combinations observed in different egg batches.
ACTA ZOOLOGICA BULGARICA
(2021)
Article
Multidisciplinary Sciences
Gergana Zaemdzhikova, Tsvetelin Zaevski
Summary: The purpose of this study is to investigate the impact of temperature on the flight initiation of Thaumetopoea pityocampa. The findings reveal that the flight initiation temperature for males is relatively lower compared to females. Additionally, the average temperature for the flight initiation of the summer form is lower than for the winter form. This suggests that the summer form has better adaptability to lower ambient temperatures, thereby promoting its distribution in habitats located at higher altitudes.
COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES
(2023)
Article
Entomology
Oguzhan Yanar, Elif Fatma Topkara, Funda Sahin, Yusuf Yanar, Duerdane Yanar, Yueksel Terzi
Summary: This study evaluated the efficacy of three fungal isolates against larvae of the pine processionary moth. The results showed that all three isolates were effective in killing the larvae, suggesting their potential for biological control of this species.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2023)
Article
Forestry
Georgi Georgiev, Jerome Rousselet, Mathieu Laparie, Christelle Robinet, Margarita Georgieva, Gergana Zaemdzhikova, Alain Roques, Alexis Bernard, Laura Poitou, Maurane Buradino, Carole Kerdelhue, Jean-Pierre Rossi, Maria Matova, Peter Boyadzhiev, Plamen Mirchev
Summary: The study found that the average number of eggs per batch of pine processionary moths in Bulgaria was higher, but the hatching rate was higher in France. Additionally, four primary parasitoids were identified within the historical range, while the impact of primary parasitoids in newly colonized areas was minimal.
