"Blue devil", seductive beauty

Babol - IRNA - Meanwhile, the flowering of the invasive water hyacinth known as the "blue devil" in the 40-hectare water dam of Babol reached its peak days, when environmental experts issued successive warnings to high-profile users of social networks and asked citizens not to allow the presence of citizens in this dam and spread to other water reservoirs of Mazandaran by spreading the seductive flowers of this blue devil.