Biological Control of Whitefly Pest Dynamics

Summary

Whiteflies (Hemiptera: Aleyrodidae) rank among the most pervasive agricultural pests worldwide, inflicting direct feeding damage and acting as vectors for plant viruses. Reliance on chemical insecticides has led to widespread resistance and environmental concerns, prompting a shift towards biologically based management. Biological control exploits natural enemies—primarily parasitoid wasps and predatory mites—to suppress whitefly populations through parasitism, predation and host feeding. Research has elucidated the life‐history traits, host preferences and thermal tolerances of key agents, enabling optimisation of release strategies. Augmentative releases of mass-reared endoparasitoids can stabilise pest populations in protected and open‐field systems, while conservation of indigenous predators enhances long‐term suppression. Advances in understanding functional responses, host-instar selection and multitrophic interactions have refined implementation within integrated pest management frameworks. Globally, successful programmes in greenhouse ornamentals, vegetables and field crops demonstrate that sustainable whitefly control hinges on matching agent biology to crop environment, timing of releases and compatibility with cultural practices.

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Biological Control of Whitefly Pest Dynamics publication trend

The graph below shows the total number of articles in biological control of whitefly pest dynamics across all publications each year (not limited to Nature Index journals).

Technical terms

Endoparasitoid: An organism that develops inside a host insect, ultimately killing it.

Host-feeding: Behaviour in which a parasitoid consumes host fluids or tissues to obtain nutrients.

Functional response: The relationship between host density and the rate at which a natural enemy attacks or consumes hosts.

Instar: A developmental stage of an insect between successive moults.

Augmentative biological control: Periodic release of mass-reared natural enemies to boost population levels in the field.

Integrated pest management (IPM): A coordinated approach that combines biological, cultural and chemical strategies to manage pest populations sustainably.

References

  1. Biological characteristics and parasitization potential of Encarsia formosa Gahan (Hymenoptera: Aphelinidae) on the whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae), a pest of greenhouse crops in north-western Indian Himalayas. Egyptian Journal of Biological Pest Control (2023).
  2. Management of Whiteflies (Bemisia tabaci. Gennadius) Using Amblyseius swirskii Athias-Henriot (Swirski-Mite) in Chilli Crop. Tropical Agricultural Research and Extension (2023).
  3. Larger is Better in the Parasitoid Eretmocerus warrae (Hymenoptera: Aphelinidae). Insects (2020).

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