Article
Agronomy
Antonio J. Alvarez, Rocio M. Oliva
Summary: Dryocosmus kuriphilus Yasumatsu, originating from China, has rapidly spread worldwide and become the main pest of chestnut trees, leading to significant production losses. This study aims to define the characteristics of a textile barrier to prevent the spread of this species. Results show that a fully effective screen has been found and its design characteristics can be used for further optimization.
Article
Plant Sciences
Cancan Zhu, Wu Wang, Yu Chen, Yuqiang Zhao, Shijie Zhang, Fenghou Shi, Muhammad Khalil-Ur-Rehman, Niels J. Nieuwenhuizen
Summary: This study investigates the chemical and transcriptional differences in response to chestnut gall wasp (GWDK) infestation in two different chestnut varieties. The results show that resistant varieties have higher concentrations of H2O2 and activities of POD and SOD enzymes, while susceptible varieties have higher activities of CAT and PPO enzymes. Transcriptomic analyses reveal that various metabolic pathways involved in GWDK stress responses are enriched in the contrasting samples.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Entomology
Milos Sevarika, Marco Valerio Rossi Stacconi, Roberto Romani
Summary: This study investigates the sensory structures of antennae and ovipositor in the chestnut gall wasp, revealing the importance of sensory organs in locating oviposition sites and assessing the suitability of plant tissues. The diverse sensilla play a crucial role in the insect's ecological behavior, shedding light on the ovipositional mechanism used by this pest.
Article
Ecology
Maria J. Lombardero, Matthew P. Ayres, Pedro Alvarez-Alvarez, Fernando Castedo-Dorado
Summary: Plants have genetic defenses against herbivores and pathogens. The invasive gall maker, D. kuriphilus, has become a major pest on chestnut trees worldwide. Genetic variation in susceptibility to D. kuriphilus was found among chestnut genotypes. The resistance mechanisms involve hypersensitive reactions and early abscission of galls. Surprisingly, the genetic resistance was not related to phytochemistry.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2022)
Article
Biodiversity Conservation
Enrico Marcolin, Mario Pividori, Fernanda Colombari, Maria Chiara Manetti, Francesco Pelleri, Marco Conedera, Eric Gehring
Summary: Research has shown that the invasion of the Asian chestnut gall wasp in Europe resulted in a 60% reduction in chestnut tree-ring growth, with effects lasting longer and being more severe compared to other stresses. Most trees only returned to normal growth rates after 3-4 years of biological control measures being implemented.
JOURNAL OF APPLIED ECOLOGY
(2021)
Article
Entomology
Javier Quinto, Maria Eva Wong, Juan Ramon Boyero, Jose Miguel Vela, Martin Aguirrebengoa
Summary: The invasive chestnut gall wasp, Dryocosmus kuriphilus, has caused serious damage to the chestnut industry in Europe. Little is known about its status in the southernmost distribution in continental Europe. Research has shown significant variation in its population dynamics and flight phenology among different locations and over time, which are influenced by thermal trends.
Article
Ecology
Fernando Castedo-Dorado, Pedro Alvarez-Alvarez, Maria Josefa Lombardero
Summary: This study analyzed the impact of the chestnut gall wasp on the diameter growth of chestnut trees. The results showed that most sites exceeded the theoretical damage threshold during the study period, but there was no difference in the growth between attacked and unaffected trees in the two hybrid clone sites. The attacked trees in the Castanea sativa plots experienced an average reduction of 9.9% in annual basal area increment.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2023)
Article
Biodiversity Conservation
Diego Gil-Tapetado, Fernando Castedo-Dorado, Jose Luis Nieves-Aldrey, Maria J. Lombardero
Summary: The resistance offered by native communities plays a crucial role in the success of invasive species, with native parasitoids contributing to biotic resistance against the chestnut pest Dryocosmus kuriphilus. However, the parasitism rate of native parasitoids on D. kuriphilus decreases significantly over time due to changes in gall characteristics and increased abundance of the pest.
BIOLOGICAL INVASIONS
(2021)
Article
Entomology
Diego Gil-Tapetado, Francisco Jose Cabrero-Sanudo, Carlo Polidori, Jose F. Gomez, Jose Luis Nieves-Aldrey
Summary: The study found that the gall mass and volume of Dryocosmus kuriphilus are influenced by climate, with galls in the Eurosiberian region being smaller than those in the Mediterranean region. Insolation and precipitation conditions seem to play a role in influencing the morphological characteristics of the galls.
BULLETIN OF ENTOMOLOGICAL RESEARCH
(2021)
Article
Entomology
Louise Labbate, Deborah G. McCullough
Summary: Asian chestnut gall wasps, an invasive pest native to China, have been detected in Michigan, impacting the local chestnut industry. Researchers have investigated their density, life stages, and the influence of parasitoids. The study found that the density of Asian chestnut gall wasps sharply decreased in 2019, potentially due to larval mortality caused by severe cold temperatures. The study also revealed that chestnut cultivars with a coevolutionary history with the wasps had a lower impact on their density.
ENVIRONMENTAL ENTOMOLOGY
(2022)
Article
Entomology
D. Gil-Tapetado, F. J. Cabrero-Sanudo, J. F. Gomez, R. R. Askew, J. L. Nieves-Aldrey
Summary: A study of the parasitoid community of Dryocosmus kuriphilus in Spain revealed a sub-community of univoltine parasitoids in the south, exhibiting a similar life cycle to Torymus sinensis. Despite the release of T. sinensis in the south region, its numbers remain low in northwest Spain.
BULLETIN OF ENTOMOLOGICAL RESEARCH
(2021)
Review
Forestry
Katarina Kos, Nikola Lackovic, George Melika, Dinka Matosevic
Summary: The rapid spread of the Asian chestnut gall wasp in Southeast Europe has led to increased investigation into control measures, with biological control being recognized as the most suitable option. Introduced parasitoid Torymus sinensis has been successful in suppressing the pest, outcompeting native parasitoids and contributing to the maintenance of ecological balance in affected forest ecosystems.
JOURNAL OF FORESTRY RESEARCH
(2021)
Article
Entomology
Xiaohui Yang, Yu Hui, Daohong Zhu, Yang Zeng, Lvquan Zhao, Xuemei Yang, Yumei Wang
Summary: This research investigated the bacterial communities and predominant bacteria in Dryocosmus kuriphilus, Torymus sinensis, D. kuriphilus galls, and galled twigs. It found that D. kuriphilus shares most bacterial species with T. sinensis, D. kuriphilus galls, and galled twigs. The predominant bacteria in D. kuriphilus are Serratia sp. and Pseudomonas sp. The study also identified 111 common bacteria among D. kuriphilus adults, T. sinensis, D. kuriphilus galls, and galled twigs, suggesting horizontal transmission based on ecological associations.
Article
Entomology
Xiao-Hui Yang, Xiang-Mei Li, Dao-Hong Zhu, Yang Zeng, Lv-Quan Zhao
Summary: Dryocosmus kuriphilus is an invasive pest species native to China, inducing insect galls on chestnut trees and potentially transmitting fungi. The research provides evidence that D. kuriphilus adults share fungal species with associated insect galls and galled twigs, suggesting they may be potential vectors of plant pathogens.
Article
Agronomy
Dimas Pereira-Obaya, Fernando Castedo-Dorado, Enoc Sanz-Ablanedo, Karen Brigitte Mejia-Correal, Jose Ramon Rodriguez-Perez
Summary: This study used a spectroradiometer to collect data from leaves of 83 trees in two chestnut orchards and developed classifiers to distinguish different infestation levels of the chestnut gall wasp. The study successfully differentiated between the presence and absence of the pest, but was less effective in determining the level of infestation.