Results 31 to 40 of about 184 (124)

Newly invaded territories by Dryocosmus kuriphilus in Spain and first records of Torymus sinensis in the Sistema Central

open access: yesForest Systems, 2020
Aim of the study: To update the distribution of Dryocosmus kuriphilus, the Asian chestnut gall wasp, focusing on the central area of the country (Sistema Central). Gall samplings of these areas were carried to obtain the first records of parasitoids on D.
Diego Gil-Tapetado   +3 more
doaj   +1 more source

Gnomoniopsis castaneae: An emerging plant pathogen and global threat to chestnut systems

open access: yesPlant Pathology, Volume 72, Issue 2, Page 218-231, February 2023., 2023
The recent discovery of Gnomoniopsis castaneae in the United States brings a new urgency to the need to understand the full range and epidemiology and to examine potential methods of detection and mitigation. Abstract Gnomoniopsis castaneae is an important, destructive pathogen of Castanea species, initially identified as the primary agent of nut rot ...
Emily Dobry, Michael Campbell
wiley   +1 more source

Host Gall Size and Temperature Influence Voltinism in an Exotic Parasitoid

open access: yesFrontiers in Ecology and Evolution, 2022
Insect phenology is highly temperature-dependent. Higher temperatures can lead to earlier emergence and lengthening of the active period, which enable many insect groups to complete more generations.
Martin Aguirrebengoa   +3 more
doaj   +1 more source

Speciation in Nearctic oak gall wasps is frequently correlated with changes in host plant, host organ, or both

open access: yesEvolution, Volume 76, Issue 8, Page 1849-1867, August 2022., 2022
Abstract Quantifying the frequency of shifts to new host plants within diverse clades of specialist herbivorous insects is critically important to understand whether and how host shifts contribute to the origin of species. Oak gall wasps (Hymenoptera: Cynipidae: Cynipini) comprise a tribe of ∼1000 species of phytophagous insects that induce gall ...
Anna K. G. Ward   +10 more
wiley   +1 more source

Rapid on-site identification of the biocontrol agent of the Asian chestnut gall wasp [PDF]

open access: yesBiocontrol Science and Technology, 2016
In classical biocontrol programmes, a rapid and correct identification of the introduced antagonist is a key issue during both the release and establishment monitoring phases. It is often difficult to distinguish morphologically cryptic species or immature stages. An accurate diagnosis can now be provided by molecular diagnostic methods.
Colombari, F.   +8 more
openaire   +5 more sources

Commodity risk assessment of Acer palmatum plants grafted on Acer davidii from China

open access: yesEFSA Journal, Volume 20, Issue 5, May 2022., 2022
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by 2‐year‐old bare rooted plants for planting of ...
EFSA Panel on Plant Health (PLH)   +28 more
wiley   +1 more source

Extreme climatic events affect populations of Asian chestnut gall wasps, Dryocosmus kuriphilus , but do not stop the spread [PDF]

open access: yesAgricultural and Forest Entomology, 2021
Abstract Global climate change affects the frequency of extreme weather events that can influence plant–insect interactions. We evaluated how the late‐spring frost and ...
Maria J. Lombardero   +2 more
openaire   +4 more sources

Commodity risk assessment of bonsai plants from China consisting of Pinus parviflora grafted on Pinus thunbergii

open access: yesEFSA Journal, Volume 20, Issue 2, February 2022., 2022
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver a scientific opinion on the risk posed by bonsai plants from China consisting of Pinus parviflora grafted on Pinus thunbergii taking into account the available scientific information, including the technical information provided by China.
EFSA Panel on Plant Health (PLH)   +28 more
wiley   +1 more source

The Paths of the Galls: Differences in the Ecology and Distribution of Two European Oak Gall Wasps Andricus dentimitratus and Andricus pictus

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 2022, Issue 1, 2022., 2022
Andricus dentimitratus (Rejtõ, 1887) and Andricus pictus (Hartig, 1856) are two European gall wasps (Hymenoptera, Cynipidae) that induce galls on species of Quercus. The distribution and ecological niches of these species have not been studied in detail, though they are known to have a different distribution pattern in the Iberian Peninsula in Europe ...
Lola F. Multigner   +4 more
wiley   +1 more source

Defensive patterns of chestnut genotypes (Castanea spp.) against the gall wasp, Dryocosmus kuriphilus

open access: yesFrontiers in Forests and Global Change, 2022
Plants draw from various genetically controlled defenses to protect against herbivores and pathogens. The efficacy of alternative defenses can vary with the biology and phylogeny of the enemy. Dryocosmus kuriphilus, an invasive gall maker native to China,
María J. Lombardero   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy