Attractive Toxic Sugar Bait Strategies for Malaria Vector Control

Attractive Toxic Sugar Baits (ATSBs) combine sugar solutions with oral insecticides to exploit the innate sugar‐feeding behaviour of Anopheles mosquitoes. By offering toxin‐laced sugar either in outdoor bait stations or sprayed on vegetation, ATSBs attract both male and female vectors and induce mortality upon ingestion. This strategy complements indoor interventions such as long‐lasting insecticidal nets and indoor residual spraying by targeting mosquitoes regardless of feeding or resting preferences. Across diverse ecological settings, from arid savannahs to humid tropical zones, ATSBs have demonstrated significant reductions in vector density, longevity and malaria transmission. Improvements in bait formulation—including novel phagostimulants and attractant blends—have enhanced feeding rates and species specificity, while minimising impacts on non-target organisms. As part of integrated vector management, ATSBs offer a distinct mode of action that addresses residual transmission and mitigates insecticide resistance.

Research from Nature Portfolio

Recent studies have deepened our understanding of mosquito sugar‐feeding and phagostimulant efficacy. One investigation showed that the Plasmodium‐derived metabolite (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate markedly increased feeding on both blood and plant‐based artificial solutions across multiple Anopheles species, pointing to new attractant candidates for sugar baits. Another study assessed natural sugar‐feeding frequencies in western Kenya, revealing that a substantial proportion of field‐collected Anopheles mosquitoes had ingested plant sugars at all physiological stages, indoors and outdoors. These findings inform optimal timing and placement of ATSB deployments to maximise vector contact and mortality.

Attractive Toxic Sugar Bait Strategies for Malaria Vector Control publication trend

The graph below shows the total number of articles in attractive toxic sugar bait strategies for malaria vector control across all publications each year (not limited to Nature Index journals).

Technical terms

Attractive Toxic Sugar Bait (ATSB): A vector control tool combining sugar solutions with oral insecticides to kill mosquitoes via sugar feeding.

Phagostimulant: A substance that enhances feeding behaviour in mosquitoes, increasing bait ingestion.

Gonotrophic cycle: The interval from blood feeding to egg laying in female mosquitoes; serves as an age and transmission-potential indicator.

Entomological inoculation rate (EIR): A measure of malaria transmission intensity, defined as the number of infectious bites received per person per unit time.

References

1. Feeding rates of malaria vectors from a prototype attractive sugar bait station in Western Province, Zambia: results of an entomological validation study. Malaria Journal (2023).
2. Plasmodium metabolite HMBPP stimulates feeding of main mosquito vectors on blood and artificial toxic sources. Communications Biology (2021).
3. Natural sugar feeding rates of Anopheles mosquitoes collected by different methods in western Kenya. Scientific Reports (2022).
4. Attractive Toxic Sugar Bait (ATSB) For Control of Mosquitoes and Its Impact on Non-Target Organisms: A Review. International Journal of Environmental Research and Public Health (2017).
5. Large-scale field trial of attractive toxic sugar baits (ATSB) for the control of malaria vector mosquitoes in Mali, West Africa. Malaria Journal (2020).
6. Attractive targeted sugar bait phase III trials in Kenya, Mali, and Zambia. Trials (2022).