Male fertility has been correlated to sperm counts,motility and morphology. Wyrobek et al (1983),evaluating changes in sperm morphology caused bychemicals (including some pesticides) found that analysisof teratozoospermia is a useful tool to asses testiculartoxicants. In view of their wide agricultural use and scarcereproductive information available regarding organo- Wyrobek et al (1983), evaluating changes in sperm morphology caused by chemicals (including some pesticides) found that the analysis of teratozoospermia is a useful tool to asses testiculartoxicants. In view of their wide agricultural use and scarcereproductive information available regarding organo-