Rust Redux: Another spring season means market watchers will be looking for signs of Asian soybean rust

摘要

PHAKOSPORA PACHYRHIZI (Asian soybean rust) arrived in the southern U.S. (Louisiana) in September 2004, probably via spores swept along by Hurricane Ivan on its journey from South America. The disease, originating in Asia, has been established in Brazil, Paraguay, and parts of northern Argentina since February 2001. With ability to infect and sporulate on a huge range of leguminous crops and weeds — including kudzu, pigeon peas, Centrosema, and Phaseolus — P. pachyrhizi infects over 95 species of plants representing at least 42 genera, including many wild and edible legumes.