 This host range includes more than 170 different plant species from 27 different families.The symptoms of infection can vary depending on the species of the host, the cultivar, environmental factors and strains of the virus, but the main symptoms to look for are mottling and mosaic.For example, watermelon mosaic causes systemic mosaic and occasional leaf malformation in "Cucurbita pepo" a type of Squash while causing necrotic local lesions, systemic mottling, and necrosis when infecting "Pisum sativum" (Pea) or mosaic lesions and fruit distortion in "Citrullus lanatus" (Watermelon).