Although it is estimated that the soy trade in Asia should not be disrupted by a fungus problem in Brazil, "buyers are watching nervously as another woe threatens South American supply prospects". According to a report by World Agriculture Online , the devastating Asian rust fungus, which reduces the size and yield from soybeans, has been found in at least four of Brazil's main farm states, as neighbouring Argentina, itself no stranger to fungus problems, reels from a financial crisis.