[Trials to introduce Romanomermis culicivorax (Nematoda: Mermithidae), mosquito larva parasites, into the reservoirs of Voronezh and Moscow Province].

Possibility of using Romanomermis culicivorax for mosquito control in the town of Voronezh and Moscow Province has been assessed. The infection rate of mosquito larvae didn't exceed 26% when preparasitic juveniles were released into water bodies at a ratio of 1-3 thousand per 1 m2 and temperature 18-25 degrees C. There were no evidences of mermithid settlement and hibernation in the water bodies of Voronezh.