Weeds can help make farms more productive and not the opposite as is commonly believed, according to a new study out Friday by Italy's Sant'Anna School of Advanced Studies located in the Tuscan city of Pisa. According to a three-year study led by Guillaume Adeux, a PhD student in the Agrobiodiversity program at Sant'Anna, maintaining a certain level of biodiversity in the weeds that cohabit with farm crops helps reduce crop losses.                                                                         Source:xinhuanet .com                                                                                                               16 November 2019