Robbsia andropogonis

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Robbsia andropogonis (=Pseudomonas andropogonis) causing leaf spot of white clover (Trifolium repens) (click on image to enlarge it)
Author(s): Scot Nelson
Source: Wikimedia Commons

Robbsia andropogonis Lopes-Santos et al. 2017

This bacterium is widely distributed, causing leaf spot, black spots or bacterial stripe on various crops. The host range includes plants from the families Poaceae, Fabaceae, as well as various other families (e.g. see Muriithi & Claflin, 1997 or Young et al., 2007). The disease incidence might exceed 10% (Scortichini et al., 2001).

The lesions are mainly elongated on monocots and round to irregular on dicot plants, dark at the centre and surrounded by a chlorotic halo. Infections occur under conditions of high humidity and high temperature. Like other bacterial diseases, it presumably spreads through rain splashes.

Pseudomonas andropogonis
Burkholderia andropogonis