What about research showing increased incidence of Fusarium in Roundup Ready GM crops?
RK: We’ve taken field surveys and seen an increase in Fusarium with the use of glyphosate. Some Roundup Ready varieties even without using glyphosate tend to be more susceptible to being impacted by Fusarium. It could be an unintended consequence of genetic manipulation that could make it more susceptible. Your paper also mentioned the potential of glyphosate to contaminate groundwater. RK: Yes, under certain circumstances. The big assumption for claims that glyphosate is benign is that it isn’t immediately absorbed by the soil. But research is showing that isn’t necessarily true; that it is still available in the soil. If soil is full of phosphorous, glyphosate could leach into ground water. For example, farmers may use manure from confined animal feeding operations as a fertilizer. The soil will then contain high amounts of phosphorus, which overwhelms the soil. Any glyphosate that hits the soil will be a potential contaminant. It can stay in the soil or it might run off into streams
