Biological Control Strategies for Aphid Management
Summary
Biological control of aphids encompasses the deliberate use of living organisms to suppress pest populations, thereby reducing reliance on chemical insecticides and mitigating environmental impact. Core approaches include conservation biological control, which enhances the habitat or resources of native natural enemies; augmentative release, involving periodic mass addition of predators or parasitoids; and classical biological control, where exotic natural enemies are introduced and established against invasive aphid species. Predatory insects such as ladybirds, lacewings and hoverflies consume aphids directly, while parasitoid wasps of the subfamily Aphidiinae infiltrate aphid bodies and develop internally, ultimately killing their hosts. Pathogenic fungi and entomopathogenic nematodes also contribute under certain conditions. Effective implementation relies on an understanding of trophic interactions, climatic tolerance, release timing and rates, and compatibility among biocontrol agents. Integration with monitoring systems permits threshold‐based interventions, optimising cost-effectiveness. Advances in habitat management, trait‐based selection of biocontrol strains and decision‐support tools have strengthened the global applicability of these strategies, from open‐field cropping systems to protected cultivation environments.
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Biological Control Strategies for Aphid Management publication trend
The graph below shows the total number of articles in biological control strategies for aphid management across all publications each year (not limited to Nature Index journals).
Technical terms
Augmentative release: The periodic mass introduction of natural enemies, such as predators or parasitoids, to bolster their population density against pest species.
Endoparasitoid: A parasitoid insect whose larval stage develops inside the body of a host, ultimately leading to host mortality.
Intraguild predation: Interactions in which one natural enemy preys upon another, potentially affecting the overall efficacy of biocontrol programmes.
Trophic level: A position in a food web, defined by the organism’s source of nutrition, with aphids occupying primary consumer status and their predators or parasitoids higher levels.
Phenotypic plasticity: The ability of an organism to adjust its morphology, physiology or behaviour in response to environmental variation, influencing the adaptability of biocontrol agents.
References
- Hoverflies provide pollination and biological pest control in greenhouse-grown horticultural crops. Frontiers in Plant Science (2023).
- Monitoring and Signaling of the Most Important Aphid Species in the Territory of Greater Poland and Silesia Provinces. Agriculture (2024).
- Identification of Conditions for Successful Aphid Control by Ladybirds in Greenhouses. Insects (2017).
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