Fruit protection against infection by Phyllosticta citricarpa , the causal agent of citrus black spot (CBS), relies heavily on fungicides. Quinone-outside inhibitors (QoIs), which have a site-specific mode of action, have been in use since the early 2000s in South African citrus orchards. This study investigated the occurrence of the F129L, G137R or G143A mutations in codons 129, 137 and 143, respectively, in cytochrome b ( cy...

Huanglongbing, a devastating citrus disease, is associated with ‘ Candidatus Liberibacter asiaticus’, ‘ Ca. L. africanus’ or ‘ Ca L. americanus’, bacteria transmitted by the psylloids Diaphorina citri and Trioza erytreae . Using a DNA-Seq and metabarcode sequencing integrated approach, the first catalogue of endosymbionts associated with T. erytreae from the Iberian Peninsula, South Africa and African Islands, was generated. T...

The complete genome sequence of fig leaf mottle-associated virus 2 (FLMaV2), a positive-sense single-stranded RNA virus with a genome length of 16,925 nucleotides, was determined via RT-PCR and rapid amplification of cDNA ends (RACE). Its genome organization resembles those of little cherry virus 2 (LChV2) and yam asymptomatic virus 1 (YaV1), both of which are currently classified as members of the genus Ampelovirus but differ...

Virus-like symptoms on fig tree leaves are a common occurrence worldwide and has mostly been attributed to fig mosaic disease (FMD). Even though only fig mosaic virus (FMV) has been shown to cause FMD, many other viruses have been identified in diseased fig trees. In 2021, total RNA was extracted from fig leaf samples displaying symptoms of mosaic and chlorotic mottling and was subjected to high-throughput sequencing (HTS) to...