Publications for:

pest = Opuntia virus X
crop = Selenicereus (pitaya)

found 2 publications:

2022

First report of Cactus virus X in Spain
Australasian Plant Disease Notes (2022) 17 (34)
publishers website - pestinfo wiki

2001

First report of Cactus virus X on Hylocereus undatus (Cactaceae) in Taiwan
Plant Disease (2001) 85 (2), p. 229
publishers website - pestinfo wiki