Ripe‐rot is one of the most important bunch diseases of grapes in the highlands of Southern Brazil, and a matter of concern for winegrowers. Sixty‐one strains isolated from symptomatic berries of Vitis labrusca and V. vinifera varieties were classified by phylogenetic analysis of β‐tubulin, glyceraldehyde‐3‐phosphate dehydrogenase, D1/D2 domain of 28S rDNA, and rDNA internal transcribed spacer sequences

Acidovorax citrulli is the causal agent of bacterial fruit blotch disease of cucurbits. Strains of this pathogen are distributed into two major groups: group I strains have been mainly isolated from melon and other non‐watermelon cucurbits, while group II strains have been mainly recovered from watermelon. Here we report the characterization of strains T1 and EP isolated from diseased tomato and eggplant

Xylella fastidiosa is an important insect‐vectored bacterial plant pathogen with a wide host range, causing significant economic impact in the agricultural and horticultural industries. Once restricted to the Americas, severe European outbreaks have been discovered recently in Italy, Spain, France and Portugal. The Italian outbreak was detected in Puglia in 2013 and has spread over 100 km, killing

In McMaster et al . (2020), there are a number of errors present in the published version of Table 3. For the row P. beaumarisii , the host and ITS number are incorrect; for the second P. bifrenariae row the LSU number is incorrect; for the last 30 rows of the table (from the second P. citriasiana row onwards) the host and country are incorrect; in the column “Culture no.” the bold formatting to indicate

It is important to understand the likely response of plant pathogens to increased temperatures due to anthropogenic climate change. This includes evolutionary change due to selection on genetically based variation in growth rate with temperature. We attempted to quantify this in two ways. First, radial mycelial growth rates in agar culture were determined for a collection of 44 English isolates of

The center of origin of the globally distributed wheat pathogen Parastagnospora nodorum has remained uncertain because only a small number of isolates from the Fertile Crescent were included in earlier population genetic and phylogeographic studies. We isolated and genetically analyzed 193 P. nodorum strains from three naturally infected wheat fields distributed across Iran using eleven neutral microsatellite

In recent years several interspecific hybrids have been reported in the plant pathogenic oomycete genus Phytophthora . Due to the large genotypic and phenotypic changes, these hybrids might have broader or more limited host ranges compared with their parental species. It is crucial to understand the host range of Phytophthora hybrids to minimize the economic losses caused by their infection. The potential

Accurate determination of disease causation is essential for understanding the epidemiology of diseases, enabling effective management decisions and risk assessment. Definitively linking a novel pathogen candidate with an observed symptom of disease requires extensive biological characterisation (MacDiarmid et al., 2013, Adams et al., 2018, Massart et al., 2017).

The whitefly transmitted begomovirus Tomato yellow leaf curl virus (TYLCV) spread from the Middle East to become a near global problem for tomato production in the 1990s. This spread is believed to have occurred due to the global trade in live tomato planting material. Recently the important strains of TYLCV, “Israel” and “Mild”, in the Middle East have been shown to associate with the betasatellite