Agent Orange chemical in GM war on resistant weeds

[BBC] A US biotechnology company is set to introduce a controversial new genetically modified corn to help farmers fight resistant weeds.

Dow Agrosciences says its new GM product is based on a chemical that was once a component of the Vietnam war defoliant, Agent Orange.

It is needed they say because so called "superweeds" are now affecting up to 15 million acres of American crops.

Thousands of farmers across the US now face similar problems with weeds that can withstand powerful herbicides. Scientists say it is because of the success of GM crops that were introduced in the mid 1990s. 


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