For maintaining of Zagros forests role in wild life, water and soil conservation, the suitable solutions and methods for assessing the existing conditions and planning for management of this forests should be given. To detection of suitable sampling method to study tree Diameter at Breath Height in the northern Zagros forest, Blake forest, in Baneeh region, Kurdistan province, and west of Iran ...

Effective survey methods to detect and monitor recently established, low-density infestations of emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), remain a high priority because they provide land managers and property owners with time to implement tactics to slow emerald ash borer population growth and the progression of ash mortality. We evaluated options for using gi...

At least 10% of the world's tree species are threatened with extinction and pathogens are increasingly implicated in tree threats. Coextinction and threats to affiliates as a consequence of the loss or decline of their host trees is a poorly understood phenomenon. Ash dieback is an emerging infectious disease causing severe dieback of common ash Fraxinus excelsior throughout Europe. We utilized...

Recirculation of wood ash from energy production to forest soil improves the sustainability of this energy production form as recycled wood ash contains nutrients that otherwise would be lost at harvest. In addition, wood-ash is beneficial to many soils due to its inherent acid-neutralizing capabilities. However, wood ash has several ecosystem-perturbing effects like increased soil pH and pore ...

To assess white ash (Fraxinus americana) health status in the Allegheny Plateau region via 1) examination and refinement of existing FHM/FIA plot data and 2) establishment and sampling of additional ash health plots to enhance existing FHM/FIA data. This enhanced sampling will allow us to explore, in detail, how topographic position and site characteristics (e.g., soil pH and nutrition) are rel...

Objective: To investigate the pharmacognostic and preliminary phytochemical characteristics of leaves of an endangered medicinally important forest tree species Strychnos potatorum. Methods: Pharmacognostic and phytochemical investigations were conducted in terms of macroscopic, microscopic, physicochemical and preliminary phytochemical parameters. Results: The macro and microscopic study revea...

Smokers HMOX1 ASH 2.44 (1.07, 4.90) 2.43 (1.07, 6.24) 2.11 (0.71, 6.86) 2.74 (0.97, 5.14) 1.73 (0.84, 3.82) BSH 2.73 (1.44, 3.13) 2.14 (1.49, 2.37) 2.83 (1.98, 3.93) 1.49 (1.27, 2.97) 2.05 (1.12, 3.27) NQO1 ASH 1.70 (0.82, 5.48) 2.33 (1.23, 5.32) 1.76 (0.67, 4.00) 1.47 (0.63, 5.15) 2.11 (0.91, 4.31) BSH 0.30 (0.14, 1.95) 1.29 (0.93, 2.34) 1.58 (1.01, 3.95) 0.90 (0.63, 3.33) 0.86 (0.32, 2.20) No...

Emerald ash borer (Agrilus planipennis Fairmaire) is an invasive primary pest of North American ash (Fraxinus spp.) trees. Blue ash (F. quadrangulata) is less susceptible to emerald ash borer infestations in the forest than other species of North American ash. Whereas other studies have examined adult host preferences, we compared the capacity of emerald ash borer larvae reared from emerald ash...

During post glacial colonization, loss of genetic diversity due to leading edge effects may be attenuated in forest trees because of their prolonged juvenile phase, allowing many migrants to reach the colonizing front before populations become reproductive. The northern range margins of temperate tree taxa in Europe are particularly suitable to study the genetic processes that follow colonizati...