Mosquito-borne diseases are a consistent problem in Vietnam. Additionally, freshwater snail species agricultural pests and known to be intermediate hosts for several parasitic worms. There is need new complementary botanical pesticidal agents controlling these essential oils have shown promise. In this work, from 2 of Callicarpa ( C. rubella sinuata) 4 Premna P. chevalieri, corymbosa, maclurei,...