Publications for:

pest = Tobacco ringspot virus
crop = Squash/pumpkin (Cucurbita)
country = U.S.A. (mid N)

found 2 publications:

2008

Occurrence and distribution of pumpkin and squash viruses in Illinois
Plant Disease (2008) 92 (1), 61-68
publishers website - pestinfo wiki

2006

First report of Tobacco ringspot virus in pumpkin (Cucurbita pepo) in Illinois
Plant Disease (2006) 90 (10), p.1361
publishers website - pestinfo wiki