First report of Coniella hibisci causing leaf and stem canker in the Lao P.D.R.

Abstract

Coniella hibisci is reported for the first time in Lao P.D.R. The pathogen was isolated from roselle (Hibiscus sabdariffa var. sabdariffa) stem and leaf samples from a farm in Thateng district, Sekong province, and deposited with the International Collection of Microorganisms from Plants (ICMP). The identification of the pathogen was based on morphological features and the results of sequencing the ITS, LSU, and tef1 genetic loci. Pathogenicity tests on four-week-old roselle plants reproduced field symptoms, satisfying Koch's postulates.

First report of Fusarium concentricum causing fruit blotch on roselle (Hibiscus sabdariffa)

“…The described symptoms are in accordance with the symptoms displayed on the inoculated roselle fruits. Several different pathogens have been reported to threaten roselle cultivation worldwide and in Malaysia (Ooi and Salleh 1999;Swart and Langenhoven 2000;Amusa et al 2001;McClintock and Tahir 2004;Ploetz et al 2007;Eslaminejad and Zakaria 2011;Ansari et al 2013;Pain et al 2019).…”