Results 61 to 70 of about 540 (126)
ABSTRACT Aim It is not trivial to estimate the relative contributions of dispersal, vicariance, and range contraction in explaining the present‐day distribution of ancient clades. In this study, we aim to infer the historical biogeography of bark and ambrosia beetles using a genus‐level time‐calibrated molecular phylogeny that encompasses 70% of all ...
Jules Ferreira +4 more
wiley +1 more source
Commodity risk assessment of Hamamelis mollis plants from the UK
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 rooted plants in pots of Hamamelis mollis ...
EFSA Panel on Plant Health (PLH) +33 more
wiley +1 more source
Commodity risk assessment of Salix unrooted cuttings from the UK
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’.
EFSA Panel on Plant Health (PLH) +29 more
wiley +1 more source
Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley +1 more source
Pest categorisation of non‐EU Scolytinae on non‐coniferous hosts
Abstract The EFSA Panel on Plant Health performed a group pest categorisation for the EU territory of non‐EU Scolytinae (Coleoptera: Curculionidae) on non‐coniferous hosts, which total 6495 known species. Most species attack apparently healthy, weakened or dead trees, either feeding on the phloem (‘bark beetles’ subgroup) or on fungi inoculated into ...
EFSA Panel on Plant Health (PLH) +30 more
openaire +4 more sources
Abstract Bark beetles of the genus Dendroctonus are some of the most important disturbance agents in North American forests, having colonized conifers for millions of years. The selection pressure posed by tree‐killing bark beetles pushed trees to develop an arsenal of defensive strategies to which beetles have adapted in their turn.
Grace Graham +4 more
wiley +1 more source
This study aimed to determine whether debarking of Norway spruce stumps influences the intensity of their colonization by insects. The observed stumps of Picea abies (L.) H Karst were located in the eastern Sudety Mountains at elevations between 600 and ...
Iwona Skrzecz +2 more
doaj +1 more source
A taxonomic monograph of Nearctic Scolytus Geoffroy (Coleoptera, Curculionidae, Scolytinae)
The Nearctic bark beetle genus Scolytus Geoffroy was revised based in part on a molecular and morphological phylogeny. Monophyly of the native species was tested using mitochondrial (COI) and nuclear (28S, CAD, ArgK) genes and 43 morphological characters in parsimony and Bayesian phylogenetic analyses.
Smith,Sarah, Cognato,Anthony
openaire +5 more sources
This study demonstrated that the host essential oil significantly reduced Polygraphus proximus Blandford (Coleoptera: Scolytinae) attack density, but the density did not differ significantly among logs of various lengths of Abies sachalinensis. Our study suggests that host essential oils can perform as repellents against conifer‐infesting bark beetles.
Mai Aochi, Etsuro Takagi
wiley +1 more source
Coleópteros broqueadores de madeira em ambiente natural de Mata Atlântica e em plantio de eucalipto
Objetivou-se neste trabalho fazer um levantamento de broqueadores de madeira das famílias Cerambicydae, Lyctidae, Bostrichidae, Buprestidae e subfamílias Platypodinae e Scolytinae, em ambiente natural na Mata Atlântica e em plantio de eucalipto. Instalou-
Fabricio Gomes Gonçalves +3 more
doaj +1 more source

