Farmers around the world are expected to benefit from the successful trial of an enzyme that breaks down residues of the widely used herbicide, atrazine, in farm dams and runoff water, helping reduce pollution downstream.rn'When we added the enzyme to a holding dam filled with runoff contaminated with atrazine, more than 90 per cent of it was removed in less than four hours,' says CSIRO Entomology's Dr Colin Scott.rn'Atrazine is a widely used and extremely useful herbicide but, depending on its use, can lead to residues that persist in water for sometime after application. Undesirable residues in water have led to restrictions on the use of atrazine in the EU and USA.'
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