The beet leafhopper is the lone insect vector of the beet curly top virus (BCTV) which causes disease in many important crops like beans, sugar beet, cantaloupe, cucumber, peppers, spinach, squash, tomato, watermelon and other important plants. The beet leafhopper is also responsible for transmission of two other strains of the "Beet curly top virus", which according to literature are now considered separate species. These strains are the "Beet severe curly top virus" (BSCTV) and "Beet mild curly top virus" (BMCTV). So far, the methods of transmission for all three strains seem to be the same.