Weed resistance to herbicides expands in traditional rice cropping systems

Picture copyright Mascanzoni et al.

Worldwide crop production sustainability is threatened by weed resistance to herbicides. Scientists Mascanzoni et al. demonstrated in Italy that a high risk of resistance evolution is associated with traditional rice cultivation systems opting for monoculture, water-seeding, and less diversified herbicide strategies. They showed that dry seeding and crop rotation rate are negatively correlated with resistance occurrence.

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