Tag: asian rust

• Saturday, December 23rd 2017 - 09:46 UTC

  Chemicals less and less effective against Asian rust in Brazil's soybean fields

  

  Over almost two decades, a plant disease known as Asian rust has infiltrated soybean fields across Brazil -- the world’s biggest exporter of the versatile oilseed used in countless consumer products. But the pathogen has become so resistant to chemicals meant to kill it that many farmers spray several times during their growing seasons, and still endure output losses.