Impact of Entomophaga maimaiga on gypsy moth populations in Bulgaria


Abstract: The entomopathogenic fungus Entomophaga maimaiga Humber, Shimazu and Soper (Entomophtorales) (Entomophtoraceae) was introduced into three populations of gypsy moth (Lymantria dispar L., Lepidoptera: Erebidae) in Bulgaria in 1999. After the first strong epizootics in 2005, the species was introduced in six outbreak populations of gypsy moth in different regions of the country from 2008 to 2011. Due to the resulting fungal epizootics, the calamities of the pest in Bulgaria were totally suppressed. The pathogen increased its impact by a natural range extension and it is now present in nearly all regions of the country in which L. dispar occurs.

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