ABSTRACT
Some preconditions are absolutely essential for preharvest production of my cotoxins. The foremost are the availability of toxigenic fungal strain, suscep tible host, and favorable agroclimatic niche. In standing crops, host-fungusenvironment interaction is critical in predisposition of mycotoxin contamination. Drought and/or temperature stress at critical times in the life-cycle of the suscep tible crops is one of the dominant factors. Agronomic practices and insects play major role in exacerbation of mycotoxin contamination under field conditions [3,4]. Once the crop becomes infected under field conditions, the fungal growth continues usually with increasing vigor at postharvest stages and in storage.