* Bostan H, Nie X and Singh RP (2004) An RT-PCR primer pair for the detection of pospiviroids and its application in surveying ornamental plants for viroids. Journal of Virological Methods, 116, 189–193.
* Nie X, Singh RP and Bostan H (2005) Molecular cloning, secondary structure, and phylogeny of three pospiviroids from ornamental plants. Canadian Journal of Plant Pathology, 27, 592–602.
* Weibel J, Tran TM, Bocsanczy AM, Daughtrey M, Norman DJ, Mejia L, Allen C (2016) A Ralstonia solanacearum strain from Guatemala infects diverse flower crops, including new asymptomatic hosts vinca and sutera, and causes symptoms in geranium, mandevilla vine, and new host African daisy (Osteospermum ecklonis). Plant Health Progress 17, 114-121
------- asymptomatic host.
* Weibel J, Tran TM, Bocsanczy AM, Daughtrey M, Norman DJ, Mejia L, Allen C (2016) A Ralstonia solanacearum strain from Guatemala infects diverse flower crops, including new asymptomatic hosts vinca and sutera, and causes symptoms in geranium, mandevilla vine, and new host African daisy (Osteospermum ecklonis). Plant Health Progress 17, 114-121
------- asymptomatic host.
* Commission database of host plants found to be susceptible to Xylella fastidiosa in the Union Territory (update 12 of 2019-04-11).
------- As X. fastidiosa and X. fastidiosa subsp. pauca.
