Biological Control of Mite Populations

Spider mites, broad mites and russet mites rank among the most destructive pests in horticultural and field crops worldwide, causing leaf discolouration, reduced photosynthetic capacity and transmission of plant pathogens. Chemical acaricides, though effective in the short term, often lead to resistance, non-target impacts and environmental contamination. Biological control offers a sustainable alternative by harnessing natural enemies—predatory mites, beetle larvae and specialised insects—to suppress pest populations. Strategies include classical biological control, in which exotic predators are introduced to counter invasive mites; augmentative releases, where commercial stocks of predators are periodically deployed; and conservation biological control, which manages habitat to favour naturally occurring beneficials. Success depends on accurate pest identification, careful matching of predator and prey biology, management of plant structural barriers such as glandular trichomes and webbing, and compatibility with agronomic practices. Recent advances span taxonomy, laboratory and field evaluations of predator efficacy, integration with reduced-risk acaricides and development of integrated pest management frameworks tailored to diverse cropping systems and climatic conditions.

Research from Nature Portfolio

Recent work has produced comprehensive morphological identification keys for species of the genus Oligonychus within the subgenus Reckiella, delineating diagnostic characters across multiple species subgroups and clarifying intraspecific variation. The study also describes a new spider mite species, refining the taxonomic framework that underpins accurate pest diagnosis and targeted deployment of biological control agents. By reducing misidentification and revealing cryptic diversity, these advances improve selection of effective predatory mites and enhance monitoring of mite outbreaks in agricultural landscapes.

Biological Control of Mite Populations publication trend

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

Technical terms

Phytoseiidae: A family of predatory mites widely used in augmentative biological control programmes.

Augmentation: Periodic release of mass-reared natural enemies to bolster field populations.

Classical biological control: Introduction of co-evolved natural enemies to control invasive pest species.

Conservation biological control: Habitat and agronomic management to support existing natural enemy communities.

Functional response: The relationship between prey density and predator consumption rate.

Trichomes: Glandular or non-glandular hair-like structures on plant surfaces that can impede predator movement.

Iolinid mite: A group within the Acari notable for its potential as a biocontrol agent against small arthropod pests.

References

1. Biological Control of Three Major Cucumber and Pepper Pests: Whiteflies, Thrips, and Spider Mites, in High Plastic Tunnels Using Two Local Phytoseiid Mites. Plants (2024).
2. World species of the subgenus Oligonychus (Reckiella) Tuttle and Baker (Acari, Prostigmata, Tetranychidae), diagnostic keys, taxonomic notes, and a new species. Scientific Reports (2023).
3. Predatory mites as potential biological control agents for tomato russet mite and powdery mildew on tomato. Journal of Pest Science (2024).
4. Can predatory mites aid in the management of the citrus leprosis mite?. Frontiers in Agronomy (2023).