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OCCURRENCE AND POPULATION DENSITY OF APHIDS IN APPLE ORCHARDS OF SOUTH BULGARIA
apple aphids infestation Dyspahis plantaginea Dysaphis devecta Rhopalosiphum insertum Macrosiphum euphorbiae Aphis spiraecola Aphis pomi Eriosoma lanigerum
2014/2/21
In a 2006-2008 study, seven aphid species (Hemiptera: Aphididae) were detected on apple trees in South Bulgaria: Rhopalosiphum insertum Walk. (apple-grass aphid), Dysaphis plantaginea Pass (rosy apple...
Decrease in Ambient Air Lead Concentrations in Varna, Bulgaria,Associated with the Introduction of Unleaded Gasoline
air lead Bulgaria environmental monitoring gasoline policy
2010/12/22
An examination of ambient air lead monitoring data was used to demonstrate success of banning the import and use of leaded gasoline in Bulgaria. From 1996–2007 air lead levels in Varna, the third larg...
PREVALENCE OF INFECTION WITH FRANCISELLA TULARENSIS,BORRELIA BURGDORFERI SENSU LATO AND ANAPLASMA PHAGOCYTOPHILUM IN RODENTS FROM AN ENDEMIC FOCUS OF TULAREMIA IN BULGARIA
Francisella tularensis Borrelia burgdorferi Anaplasma phagocytophilum
2010/12/24
The prevalence of Francisella tularensis, Borrelia burgdorferi and Anaplasma phagocytophilum in rodents is a determinant for their role in maintaining pathogens in the environment. A total of 169 rode...