In vitro activity of isothiocyanates against <i>Fusarium graminearum</i>

Abstract Isothiocyanates are biotoxic degradation products formed as a result of enzymatic hydrolysis glucosinolates present in Brassica species. The application biofumigant crops, an alternative crop protection method for soilborne pathogens and pests is increasingly gaining interest. However, little known the potential biofumigation to reduce inoculum Fusarium species affecting cereals. aim this study was evaluate antifungal activity five isothiocyanates, namely allyl, benzyl, ethyl, 2‐phenylethyl methyl against germination growth graminearum under vitro conditions. Aromatic isothiocyanates were more inhibitory than aliphatic mycelial growth, whereas reverse observed conidial germination. Among tested allyl efficient overall, showing lower ED 50 values (35–150 mg/L) radial growth. findings suggest that plants containing could have suppressive effect, reducing F. soil prior cereal production.