First Report of Bacterial Spot Caused by Robbsia andropogonis in Loropetalum chinense

Leaf Spot of Field Corn Caused by Pseudomonas Andropogonis

A leaf spot of field corn was shown to be caused by the bacterium Pseudomonas andropogonis. Leaf spot symptoms were observed over 3 years in several States. Inoculation of corn by vacuum infiltration of the bacteria was necessary to reproduce field symptoms. Plant Dis. Reptr. 62: 213-216. A bacterial leaf spot disease of different cultivars of field corn was observed in early summer of 1973, 19...

Bacterial Brown Leaf Spot of Citrus, a New Disease Caused by Burkholderia andropogonis

Burkholderia andropogonis was first described as the causal agent of stripe disease of sorghum and leaf spot of velvet bean in 1911 (20); at that time, it was classified as Pseudomonas andropogonis. Pseudomonas woodsii was also described, in the same publication, as an important pathogen of carnation. These two pathogens were reclassified to the genus Burkholderia based on DNA-rRNA hybridizatio...

First Report of Leaf Spot Caused by Alternaria tenuissima on Black Chokeberry (Aronia melanocarpa) in Korea

In July 2015, diseased leaves of black chokeberry (Aronia melanocarpa) were observed in Danyang and Gochang, Korea. The symptoms appeared as circular or irregular brown leaf spots, from which Alternaria tenuissima was isolated. The isolates were cultured on potato dextrose agar, and their morphological characteristics were observed under a light microscope. The colonies were whitish to ash colo...

First Report of Black Spot Disease Caused by Alternaria alternata on Sweet Persimmon Fruits

Black spot of sweet persimmon, caused by Alternaria alternata, occurred in an orchard in Gyeongnam province, Korea in 2012. The symptom was appearance of 0.5 to 4 cm black spots on the surface of fruit. The pathogen was isolated from flesh of disease lesions. The causal agent was identified as A. alternata by morphological characteristics and sequencers of the internal transcribed spacer (ITS) ...

Case Report of Meningoencephalitis in Calves Caused by Escherichia coli