Source: University of Illinois

Atrazine is one of the most widely used herbicides in North American corn production, but heated controversy remains over the 50-plus-year-old product. Several other herbicides are used in corn production, and a host of non-chemical tactics are sometimes used, too. If the use of atrazine is restricted or banned altogether, how will sweet corn growers cope? A recent University of Illinois study shows sweet corn can be grown successfully without atrazine, but given today's approach, perhaps not very often.

"We wanted to know the implications of using less atrazine in current weed management systems of sweet corn," said USDA Agricultural Research Service ecologist at the University of Illinois Marty Williams. "We conducted field studies at locations throughout North America and found that weed control falls apart pretty quickly as atrazine is removed."

Williams said that further restrictions or a complete ban of atrazine would increase occurrences of weed control failure and subsequent yield losses in sweet corn, so finding an alternative is important.

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