"The most important agronomic recommendation at this moment is not to delay fungicide applications in the face of diseases that can compromise barley and wheat yields," states consultant Agustín Bilbao, in the southern Buenos Aires region. He notes that scald has appeared in barley these days, currently with low incidence, but it can dry out the leaves if not controlled in time.
Net blotch has also developed, present in 70-100% of the plots, with strong attacks in some cases. "In wheat, there were attacks of leaf rust and stripe rust, and yellow rust, for which a first application had to be made and we are on the verge of the second," he warns.
In northern Buenos Aires, advisor Julio Lieutier says that "the wheats suffered attacks of rust and that these days there is a wave of yellow rust that is being subject to chemical control by airplane. Net blotch appeared in barley, which has already required an application and is heading for a second."