<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The density of phytophagous insect pest populations is related (directly and indirectly) to several groups of factors that can be broadly divided into: abiotic, biotic and anthropogenic. Each extreme in the abiotic environment at a macro-level leads to a series of consecutive extremes in the biotic environment, which eventually results in micro-level responses in the individual organisms. The manifestation of factors acts in aggregate or in a sequence, creating a chain of processes around us. Insects very efficiently use the abundance of nutritional resources, resulting in a tremendous increase in their population density, and triggering control mechanisms through the emergence of parasitic and pathogenic infections (viruses, bacteria, fungi, microsporidia, protozoa and nematodes). The development of entomopathogenic infections in host populations is directly dependent on the characteristics of both the antagonist and the insect. It is associated with the lifestyle and life cycle of the insect, with features encoded in the mechanism of pathogen action, and limited by the pathogen’s virulence and pathogenicity.</p></abstract>

The density of phytophagous insect pest populations is related (directly and indirectly) to several groups of factors that can be broadly divided into: abiotic, biotic and anthropogenic. Each extreme in the abiotic environment at a macro-level leads to a series of consecutive extremes in the biotic environment, which eventually results in micro-level responses in the individual organisms. The manifestation of factors acts in aggregate or in a sequence, creating a chain of processes around us. Insects very efficiently use the abundance of nutritional resources, resulting in a tremendous increase in their population density, and triggering control mechanisms through the emergence of parasitic and pathogenic infections (viruses, bacteria, fungi, microsporidia, protozoa and nematodes). The development of entomopathogenic infections in host populations is directly dependent on the characteristics of both the antagonist and the insect. It is associated with the lifestyle and life cycle of the insect, with features encoded in the mechanism of pathogen action, and limited by the pathogen’s virulence and pathogenicity.

Infectious and parasitic diseases of phytophagous insect pests in the context of extreme environmental conditions

Eberswalde University for Sustainable Development

Central European Forestry Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

The density of phytophagous insect pest populations is related (directly and indirectly) to several groups of factors that can be broadly divided into:...

Infectious and parasitic diseases of phytophagous insect pests in the context of extreme environmental conditions

Publié en ligne: 12 mai 2021

Pages: 72 - 84

DOI: https://doi.org/10.2478/forj-2020-0018

Mots clés
entomopathogenic infections, environmental conditions, extreme, insect pests, epizootic

© 2021 Danail Takov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Infectious and parasitic diseases of phytophagous insect pests in the context of extreme environmental conditions

Publié en ligne: 12 mai 2021

Pages: 72 - 84

DOI: https://doi.org/10.2478/forj-2020-0018

Mots clésentomopathogenic infections, environmental conditions, extreme, insect pests, epizootic

© 2021 Danail Takov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
entomopathogenic infections, environmental conditions, extreme, insect pests, epizootic