As they say, prevention is better than cure. Researchers at Philippine Rice Research Institute (PhilRice) are studying the impact of the emergence of the world’s worst weed in irrigated lowland rice production. Cyperus rotundus L. or purple nutsedge also locally called as mutha, sudsud, and barsanga, which is previously known to grow only in the upland, is now quite prevalent in the lowland. As mutha is considered the worst weed […]