Publications for:

pest = Tobacco ringspot virus
crop = Watermelon/colocynth (Citrullus)

found 2 publications:

2012

First confirmed report of Tobacco ringspot virus in cucurbits crops in Oklahoma
Plant Disease (2012) 96 (11), p.1705A
publishers website - pestinfo wiki

1956

Tobacco ringspot virus on watermelon
Phytopathology (1956) 46, 358-362
pestinfo wiki