[here](https://www.cbc.ca/news/world/italy-canada-durum-wheat-dispu...) is the story. The point being glyphosate is widely used in Canada to increase yield and italians didn't like that either.
I dislike this being spelled out in terms of "increasing yield" as it is actually more about managing quality. Pre-harvest applications of glyphosate are mostly a thing of the past in wheat anyway, the varieties dry down better now - it was mostly a artifact of the Canadian transition from drying crops in windrows to leaving them stand. The genetics have caught up now.