Abstract
The peanut (Arachis hypogeal L.) is one of the most important oilseed is the fourth most produced, second only to soybeans, cotton and canola. In Brazil, Sao Paulo is the largest producer, contributing about 70-80% of national production estimated at 120-150 thousand tons. Economic losses are related to aflatoxin contamination, it is difficult to control due to the influence of climatic c…