Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis

A biocontrol campaign using the parasitic protist Sarcocystis singaporensis significantly reduced rat activity and sightings in Luang Prabang, Laos. The study found an 83% decrease in rodent activity and a 57% reduction in household reports of rats post-treatment compared to untreated areas. Analysis of trapped rats suggested that adult populations were effectively targeted, while a low post-campaign infection rate indicated limited survival among treated rats. This approach demonstrates the potential for S. singaporensis as a tactical biocontrol agent in urban environments, though long-term management strategies are recommended to sustain impact.

Jäkel, T., Promkerd, P., Sitthirath, R., Guedant, P., & Khoprasert, Y. (2019). Biocontrol of rats in an urban environment in Southeast Asia using Sarcocystis singaporensis. Pest Management Science, 75(8), 2148–2157. Portico. https://doi.org/10.1002/ps.5335