EPPO Global Database

EPPO Reporting Service no. 05 - 2013 Num. article: 2013/098

First report of Ralstonia solanacearum on tomatoes in Mexico

Since June 2010, symptoms of bacterial wilt have been observed in several greenhouse tomato (Solanum lycopersicum) crops in several districts (at least 5) of the Morelos state in Mexico. Laboratory tests (PCR, pathogenicity tests) confirmed the presence of Ralstonia solanacearum (EPPO A2 List) phylotype II in diseased tomato plants. This is the first report of R. solanacearum affecting tomatoes in Mexico. It is noted that the disease was observed in greenhouses under which high temperatures (35-50°C) and high relative humidity (above 80%) conditions prevailed, and that field-grown tomatoes were not affected.
The situation of Ralstonia solanacearum in Mexico can be described as follows: Present, only in some areas.


Hernández-Romano J, Ramírez-Rojas S, Ydrac-Morales CJ (2012) First report of Ralstonia solanacearum causing tomato bacterial wilt in Mexico. New Disease Reports 26, 22. http://dx.doi.org/10.5197/j.2044-0588.2012.026.022