Results 51 to 60 of about 756 (159)
Abstract European canker is one of the most devastating fungal diseases of apple in most temperate regions. The causal agent, Neonectria ditissima, infects trees through wounds in the bark forming cankers that girdle the stem and eventually cause tree death.
Harteveld, D.O.C. +5 more
openaire +2 more sources
Background The American Beech tree (Fagus grandifolia Ehrh.), native to eastern North America, is ecologically important and provides high quality wood products.
Irina Ćalić +5 more
doaj +1 more source
Commodity risk assessment of Acer plants from Ukraine
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 Acer plants (A. griseum, A.
EFSA Panel on Plant Health (PLH) +31 more
wiley +1 more source
Special delivery: A hardwood‐killing bark beetle vectors its unusual symbiote among host trees
Abstract In mutualistic symbioses with fungi, herbivorous insects such as bark beetles (Coleoptera: Curculionidae: Scolytinae) gain access to resources that are unavailable in the absence of fungal mutualists, while fungi benefit from insect‐vectored dispersal. The most well‐studied mutualists of tree‐killing bark beetles in conifer systems are certain
Debra L. Wertman +2 more
wiley +1 more source
Commodity risk assessment of Alnus cordata and Alnus glutinosa specimen trees 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 the plant health risks posed by the following commodities: Alnus cordata and
EFSA Panel on Plant Health (PLH) +35 more
wiley +1 more source
Late-successional and old-growth forests in the northeastern United States: Structure, dynamics, and prospects for restoration. [PDF]
Restoration of old-growth forest structure is an emerging silvicultural goal, especially in those regions where old-growth abundance falls below the historic range of variability.
Ducey, Mark J. +2 more
core +2 more sources
First records of Neonectria neomacrospora (C. Booth & Samuels) Mantiri & Samuels on Abies concolor (Gordon) Lindl. ex Hildebr. in the northeast German lowlands [PDF]
Ende August 2013 wurden im Bundesland Brandenburg außergewöhnliche, bis dahin unbekannte Krankheitserscheinungen an Kolorado-Tanne (Abies concolor) festgestellt. Betroffen waren zwei Waldflächen im Raum Potsdam. Das Alter der ca.
Dahms, Christine +6 more
core +2 more sources
Commodity risk assessment of Populus alba, Populus nigra and Populus tremula 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 plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH) +32 more
wiley +1 more source

