8 species of Mesocyclops were reported in Viet Nam having wide distribution and existing naturally in certain drinking water containers of inhabitants. Mesocyclops can survive and develop well in normal condition and they are good preditors to the first instar of Aedes aegypti larvae, the major vector of dengue fever/dengue haemorrhagic fever. In the laboratory, a single Mesocyclops can kill first-instar of Aedes acgypti larvae up to 41 by M.rutneri, 37 by M.aspericorms and 31 by M.woutersi in average during 24 hours. In the fields releasing Mesocyclops (to all kind of water containers), population of Aedes aegypti reduced from 91.5% to 100% after 17 months treating and sustaining for months later
Copepoda ; dengue ; Viet Nam