Pathology and Epizootiology of Entomophaga maimaiga Infections in Forest Lepidoptera
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منابع مشابه
Pathology and epizootiology of Entomophaga maimaiga infections in forest Lepidoptera.
The insect-pathogenic fungal pathogen Entomophaga maimaiga is endemic to northeastern Asia and was first found in North America in 1989. Due to repeated epizootics and spread within populations of the major forest defoliator in northeastern North America, the gypsy moth (Lymantria dispar), this pathogen has gained much notoriety. Although this pathogen was purposely introduced to North America ...
متن کاملWithin-host interactions of lymantria dispar (Lepidoptera: lymantriidae) nucleopolyhedrosis virus and entomophaga maimaiga (Zygomycetes: entomophthorales)
The interaction of two gypsy moth (Lymantria dispar) pathogens, a nucleopolyhedrosis virus (LdNPV) and a fungus (Entomophaga maimaiga), were studied by assessing mortality among dually inoculated hosts. When fourth and fifth instar gypsy moths were inoculated with a range of doses of LdNPV and a fixed dose of E. maimaiga on the same day, the majority of larvae died from E. maimaiga infections r...
متن کاملImpact of Entomophaga maimaiga (Entomophthorales: Entomophthoraceae) on outbreak gypsy moth populations (Lepidoptera: Erebidae): the role of weather.
The fungal pathogen Entomophaga maimaiga Humber, Shimazu, and Soper is prevalent in gypsy moth [Lymantria dispar (L.)] populations throughout North America. To understand how weather-related variables influence gypsy moth-E. maimaiga interactions in the field, we measured fungal infection rates at 12 sites in central Pennsylvania over 3 yr, concurrently measuring rainfall, soil moisture, humidi...
متن کاملNondormancy in Entomophaga maimaiga azygospores: effects of isolate and cold exposure.
Azygospores (resting spores) of the fungal pathogen Entomophaga maimaiga are produced in later larval instars of the gypsy moth Lymantria dispar and normally enter constitutive dormancy. In the laboratory cadavers of recently dead larvae containing immature azygospores were placed on 1.0% water agar at 20 C for 2 wk after host death, allowing time for azygospore maturation. We found that some a...
متن کاملDiscovery of Entomophaga maimaiga in North American gypsy moth, Lymantria dispar.
An entomopathogenic fungus, Entomophaga maimaiga, was found causing an extensive epizootic in outbreak populations of the gypsy moth, Lymantria dispar, throughout many forested and residential areas of the northeastern United States. This is the first recognized occurrence of this or any entomophthoralean fungus in North American gypsy moths, and its appearance was coincident with an abnormally...
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ژورنال
عنوان ژورنال: Microbiology and Molecular Biology Reviews
سال: 1999
ISSN: 1092-2172,1098-5557
DOI: 10.1128/mmbr.63.4.814-835.1999