Impiego di protioconazolo per il controllo delle micotossine nuove ed emergenti su frumento

Prothioconazole has been reported one of the the most effective active substances in the control of Fusarium Head Blight (FHB) and in the reduction of the main mycotoxins that occur in cereal grain, such as deoxynivalenol (DON). Four field experiments has been conducted in North Italy, in order to evaluate the effect of prothioconazole applications on the prevalence of emerging mycotoxins in common winter wheat under naturally-infected field conditions. Grain samples have been analyzed by means of a dilute-and-shoot multi-mycotoxin LC-MS/MS method. On average, the results have shown that the fungicide application significantly reduced the enniatins, aurofusarin, moniliformin, tentoxin and equisetin contents in all the experiments. However, DON, deoxynivalenol-3-glucoside and culmorin were only significantly reduced in the growing season with the highest disease pressure. Other mycotoxins were mainly found in traces in the untreated plots. These results, which have been obtained in different environmental and agronomic conditions, have underlined for the first time that the fungicide usually applied to control the FHB and DON content, also consistently reduces the main emerging mycotoxins of winter wheat in temperate areas.