The herbicide is widely used by the agricultural industry on genetically modified crops, while landscapers and home gardeners also use it. Glyphosate is thought to be linked to some forms of cancer and other diseases.
McIntosh, who runs the Farmer Angus butchery on 126ha of land on the estate in Stellenbosch, said glyphosate had received attention around the world for its negative effects.
“South Africa is the only country in the entire world where the population’s staple diet - maize - is genetically modified. These maize crops are just one of the many crops that are being sprayed with glyphosate which eventually ends up in our food and water sources,” said McIntosh.
Glyphosate is sprayed directly onto the crops one to two weeks before harvesting to speed up the drying process that occurs when the crops begin to die. Glyphosate is absorbed by the plant and cannot be removed by washing.