New records of Phakopsora pachyrhizi in North America
Soybean rust caused by Phakopsora pachyrhizi (EPPO Alert List) has continued to spread in North America.
Mexico
At the end of October 2005, soybean leaves (Glycine max cv. ‘Huasteca 400’) showing rust symptoms were collected in Tamuin (State of San Luis Potosi) and in Altamira (Tamaulipas). The presence of Phakopsora pachyrhizi was then confirmed by laboratory tests. This was the first report of P. pachyrhizi in Mexico. In 2006, another outbreak of soybean rust was reported near the city of Tampico (Tamaulipas).
USA
In 2006, P. pachyrhizi was recorded in the 15 following states: Alabama, Arkansas, Florida, Georgia, Illinois*, Indiana*, Kentucky*, Louisiana, Mississippi, Missouri, North Carolina, South Carolina*, Tennessee, Texas*, Virginia*.
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* New detailed records
Sources
NAPPO Pest Alert System - Official Pest Reports. Detection of soybean rust (Phakopsora pachyrhizi) in the states of Tamaulipas and San Luis Potosi, Mexico. http://www.pestalert.org/oprDetail_print.cfm?oprid=192
ProMed posting of 2006-05-25. Soybean rust – Mexico (02). http://www.promedmail.org
USDA website – Soybean rust information site. http://www.sbrusa.net/