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Topola
2019, broj 203, str. 71-78

Izvorni naučni rad
UDK: 632.78:632.5

Lymantria dispar Mortality in Pupal Stage Caused by Entomophaga maimaiga in Bulgaria and Serbia


Georgi Georgiev 1*, Mara Tabaković-Tošić 2, Margarita Georgieva 1, Plamen Mirchev 1


1 Forest Research Institute - Bulgarian Academy of Sciences, 132 St. Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
2 Institute of Forestry, Kneza Višeslava 3, 11030 Belgrade, Serbia

Autor za korespodenciju:
Georgi Georgiev, E-mail: margaritageorgiev@gmail.com


Izvod

The impact of introduced fungal pathogen Entomophaga maimaiga on population density of Lymantria dispar (L.) was studied in Bulgaria and Serbia during the period 2009-2014. In many localities, strong mortality was observed not only during the larval development but also in the pupal stage of the host. The average annual gypsy moth mortality caused by E. maimaiga in Bulgaria varied between 66.5% and 86.8%, and in Serbia – between 62.8% and 98.8%. The pupal mortality in Bulgaria and Serbia varied between 11.7-33.1% and 0.4-6.3%, respectively. The analysis of the biological material showed that the number of dead pupae was considerably high, in spite of the established small amount of the pathogen’s azigospores. The number of azigospores in L. dispar dead pupae in three studied localities in Serbia varies strongly (12-30 per а view field), but the average values are very close (2.33-2.90). 


Ključne reči: Lymantria dispar, Entomophaga maimaiga, host mortality, pupal stage, Bulgaria, Serbia

Nazad na vrh

Univerzitet u Novom Sadu
Institut za nizijsko šumarstvo i životnu sredinu
Antona Čehova 13d
21000 Novi Sad
Republika Srbija
Tel: 021 540 383
E-mail: ilfe@uns.ac.rs
www.ilfe.org