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For 50 years, farmers around the world have relied on atrazine herbicide — one of the triazine family of herbicides — to fight weeds in corn, grain sorghum, sugar cane and other crops. And for good reason: it's still one of the most effective, affordable and trusted products in agriculture today.

Syngenta believes in atrazine, its effectiveness, its safety, its importance to agriculture - in the U.S. and worldwide.
Atrazine has long been a mainstay of corn, sorghum and sugar cane farmers because it's effective in controlling a broad range of yield-robbing weeds, is safe to the crop and fits a variety of farming systems. Its ability to increase yields is critical as demand for food and alternative fuel increases.
Atrazine passes the most stringent, up-to-date safety requirements in the world. In 2006, the U.S. Environmental Protection Agency (EPA) re-registered atrazine in 2006, based on the overwhelming evidence of safety from nearly 6,000 studies.
Atrazine poses no threat to the safety of our drinking water supplies. In 2008, none of the 122 Community Water Systems monitored in 10 states exceeded the federal standards set for atrazine in drinking water or raw water.
The latest, cutting-edge research shows that atrazine has no adverse effect on frogs. In reviewing the research in 2007, EPA went so far as to say, "the data are sufficiently robust to outweigh previous efforts to study the potential effects of atrazine on amphibian gonadal development" and "there is no compelling reason to pursue additional testing."
Syngenta's stewardship of atrazine — from watershed management to farmer education — is unsurpassed in the industry.
What's New?
Controlling weeds early in the season protects crop yields, but it may do even more for the crop. Early post-emergence herbicide applications of atrazine plus mesotrione have been shown to boost the nutritional value of some sweet corn hybrids, according to this study.