Results 61 to 70 of about 23,140 (218)
Background Leaves have highly diverse morphologies. However, with an evolutionary history of approximately 200 million years, leaves of the pine family are relatively monotonous and often collectively called “needles”, although they vary in length, width
Hong Du +3 more
doaj +1 more source
Composition analysis of exudates produced by conifers grown in Taiwan and their antifungal activity
Exudates are involved in the defense mechanism of trees; they could work against insects or microorganisms through a physical or chemical system. The main components of exudates are terpenoids. This study identified the main compounds of exudates from 13
Nai-Wen Tsao +4 more
doaj +1 more source
Suillus is a genus of ectomycorrhizal fungi associated almost exclusively with Pinaceae. Lack of sample collections in East Asia and unresolved basal phylogenetic relationships of the genus are the major obstacles for better understanding the Suillus ...
Rui Zhang +15 more
doaj +1 more source
Growth response of lutz spruce saplings to the removal of a herbaceous competitor and the application of fertilizer in Southeast Alaska [PDF]
Thesis (M.S.) University of Alaska Fairbanks, 2014.Herbaceous competitor species such as fireweed can impact future survival and growth of Lutz (Picea x lutzii Little, Pinaceae) spruce saplings. Fertilizer is applied to crop trees in order to supply more
Dickson, Emily
core
The History of Expansion of the Genus Bursaphelenchus (Nematoda: Aphelenchida: Parasitaphelenchidae) [PDF]
Because of globalization and removal of geographical barriers, frequent biological invasions of introduced species become an urgent environmental problem.
Mota, Manuel +2 more
core +1 more source
Coccinellidae (Coleoptera), Miridae (Hemiptera), Hemerobiidae (Neuroptera), Pentatomidae (Hemiptera), Anystidae (Acari), Erythraeidae (Acari) and spiders (Araneidae, Oxyopidae and Salticidae) fed on the invasive paropsine leaf beetles in Marlborough, New Zealand.
Carolin Weser +5 more
wiley +1 more source
Phloeosinus bark beetles may build up large populations in branch debris piles and stress giant sequoia trees. Covering debris piles with polyethylene sheeting increased the mean ambient temperature in piles and reduced beetle emergence. This was mediated by canopy structure, where ambient temperatures were further elevated under open canopies.
William R. Radecki, Thomas S. Davis
wiley +1 more source
Laccaria fraterna (Cooke & Mass.: Sacc.) Pegler, 1965 (Agaricales, Basidiomycota) associated with exotic Eucalyptus sp. in northern Argentina and Paraguay [PDF]
Laccaria fraterna is recorded for the first time from the Cordillera Department, Paraguay and from the north of Argentina. Both macroscopic and microscopic morphological characteristics of the basidiomata are described.
Campi, Michelle +3 more
core +1 more source
We assess the effect of sanitation felling performed in 2022 in North‐Eastern Italy on bark beetle damage that occurred in 2023 across eight spruce forest types, as evaluated using multispectral satellite imagery. Bark beetle damage was reduced only at very high or very low sanitation felling rates.
Aurora Bozzini +5 more
wiley +1 more source
Обзор дикорастущих хвойных российских островов Финского залива
На основе обширного гербарного материала по дикорастущим хвойным, собранного на российских островах Финского залива, и последующего морфолого-систематического изучения образцов впервые представлены данные о разнообразии и распространении в данном районе ...
L.V. Orlova, E.A. Glazkova
doaj

