Watermelon fruit can be misshapen, dwarfed, mottled, or spotted. Muskmelon plants may produce few fruit. Uniform green to dark green mosaic or mottling occurs on leaves. Fruit are shortened, gnarled and sometimes knobby. Leaves have a faint green to severe yellow mottle, and may be malformed puckered or blistered.
Veins sometimes extend beyond the edges of the leaves.
Knobby overgrowths cover the fruit. Green overgrowths on infected yellow fruit. Plants may become vine-like. It can infect papaya and most of the cucurbits. Although it is most common in the tropics and sub-tropics, it occasionally causes big problems in temperate regions.