Publications for:

pest = Hop stunt viroid
crop = Grapevine (Vitis)
country = Brazil (south)

found 2 publications:

2018

First report of Hop stunt viroid infecting Vitis gigas, V. flexuosa and Ampelopsis heterophylla
Australasian Plant Disease Notes (2018) 13 (3)
publishers website - pestinfo wiki

2006

Citrus exocortis viroid and Hop stunt viroid doubly infecting grapevines in Brazil
Fitopatologia Brasileira (2006) 31 (5), 440-446
publishers website - pestinfo wiki