This study was conducted at a bottomland hardwood site with heavy textured soil in Akyazi, Turkey to determine the effect of initial spacing (3.0 x 3.0, 3.0 x 2.0, 2.5 x 1.6 and 2.5 x 1.2 m) and post-planting treatments (untreated check, moving, hoeing, disking, and hoeing plus disking) on early survival and growth of Fraxinus angustifolia Vahl. One-year old bare-root seedlings (70 +/- 5 cm in ...

Two Phyllactinia species have been associated with powdery mildew on leaves of ash trees (Fraxinus) in Eurasia, fraxinicola U. Braun & H.D. Shin from Southeast Asia and fraxini (DC.) Fuss Europe. Non-native are planted urban greeneries both Europe Asia, but so far, the two not reported same area. Our molecular analysis European material consisting 55 specimens 15 countries confirmed absence...

Immunology, Phd In Science, Private Practice, Mexico City, Mexico. Background: The pollen dispersal by wind is a natural event of great biological significance and an etiological factor in the genesis of allergic respiratory diseases. This is the first such study carried out in the city of Toluca, Mexico. Objective: To present the data of collected pollen from September 2004 to September 2005. ...

Pollen grains are one of the most important groups of atmospheric biological particles that originate allergic processes. Knowledge of intradiurnal variation of the atmospheric pollen may be useful for the treatment and prevention of pollen allergies. Intradiurnal fluctuation of hourly pollen counts in 24 h are related to the daily rhythm of anther opening, and modified by various interacting f...

In the present article, two new mitosporic spccies are introdued, namely: Cercospora fraxinicola Ershad, sp. nov. on Fraxinus rotundifolia and Ramularia rubicola Ershad, sp. nov. on Rubus caesicus.

A Triosteum-feeding species of Sympistis is described from eastern North America: Sympistis forbesi sp. n. Identity of the new species is most reliably determined from larval morphology and host plant association-both adult scaling and genitalic characters overlap with those of Sympisitis chionanthi, a Chionanthus and Fraxinus feeder.

BACKGROUND Of the two known Eupareophora species, more is known about the larva  and bionomics of the Nearctic E. parca, than the rarely recorded West Palaearctic E. exarmata. NEW INFORMATION The last instar larva and prepupa of E. exarmata is illustrated and briefly described. In Germany its host is Fraxinus excelsior.