Abstract
In Brazil the 2009-2010 soybean crop took up an area of 23.06 million hectares. That result constitutes in the second largest sown area. Total production was estimated in 69.7 million tons and productivity in 2,941 kg / ha. Diseases are among the factors that can reduce soybean productivity. Approximate 40 diseases caused by fungi, bacteria, nematodes and viruses had been identified in Br…