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the claim

Gypsy moth population epidemics in the Northeast US are regulated by specific ecological pathogens

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Gypsy moth population epidemics in the Northeast US are regulated by specific ecological pathogens?

Yes. Multiple studies demonstrate that specific pathogens, such as the entomopathogenic fungus Entomophaga maimaiga and the nuclear polyhedrosis virus (LdMNPV), are key regulatory drivers capable of causing epizootics and population collapses in spongy (gypsy) moth populations.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The analysis

The retrieved papers provide robust, consistent evidence that gypsy moth population dynamics and collapses are heavily regulated by specific pathogens, notably Entomophaga maimaiga and LdMNPV. Therefore, the claim is supported by the literature.

Evidence for · 4
Parasitoids and pathogens in a collapsing Lymantria dispar (Lepidoptera: Erebidae) population in Lower Austria
2023
Demonstrates that pathogens like nuclear polyhedrosis virus and Entomophaga maimaiga play a major role in the population collapse of Lymantria dispar.
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Zankl, T., Schafellner, C., & Hoch, G. (2023). Parasitoids and pathogens in a collapsing Lymantria dispar (Lepidoptera: Erebidae) population in Lower Austria. doi.org. https://doi.org/10.1111/jen.13161

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More for · 3
Epizootic in gypsy moth (Lymantria dispar) population in the field protective forest belts of State Hunting Enterprise Balchik in 2022
2023
Shows that Entomophaga maimaiga and nuclear polyhedrosis viruses cause population collapses and epizootics in gypsy moth populations.
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Georgiev, G., Georgieva, M., Mirchev, P., Belilov, S., Matova, M., Ivanov, V., Radev, R., & Kirilova, M. (2023). Epizootic in gypsy moth (Lymantria dispar) population in the field protective forest belts of State Hunting Enterprise Balchik in 2022. doi.org. https://doi.org/10.3897/silvabalcanica.24.e108600

Expression of Entomophaga maimaiga at Several Gypsy Moth (Lepidoptera: Lymantriidae) Population Densities and the Effect of Supplemental Watering
2004
Identifies the gypsy moth-specific entomopathogenic fungus Entomophaga maimaiga as the primary larval mortality factor in population plots.
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Webb, R. E., Bair, M. W., White, G. B., & Thorpe, K. W. (2004). Expression of Entomophaga maimaiga at Several Gypsy Moth (Lepidoptera: Lymantriidae) Population Densities and the Effect of Supplemental Watering. doi.org. https://doi.org/10.18474/0749-8004-39.2.223

Amplicon-based analyses of single-nucleotide polymorphisms reveal the genetic structure of a forest insect baculovirus.
2025
Highlights that specific pathogens like Lymantria dispar multiple nucleopolyhedrovirus (LdMNPV) naturally cause epizootics and rapid declines of insect pest populations.
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C, O., J, F., MJ, R., H, L., J, M., B, R., JT, W., & JA, J. (2025). Amplicon-based analyses of single-nucleotide polymorphisms reveal the genetic structure of a forest insect baculovirus.. doi.org. https://doi.org/10.1093/ve/veaf061

What does the evidence say?

The retrieved papers provide robust, consistent evidence that gypsy moth population dynamics and collapses are heavily regulated by specific pathogens, notably Entomophaga maimaiga and LdMNPV. Therefore, the claim is supported by the literature.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 7904 Aug 2026
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