New products for Pythium blight control

The recent registration of fungicides Segway (cyazofamid) and Disarm (fluoxastrobin) brings some welcome new tools for managing Pythium blight (caused by Pythium aphanidermatum). The features of each product are summarized in the table below, as well as in this graph of university field trial efficacy data.

The performance of Segway is of particular interest, first because it does a good job of controlling Pythium, and secondly, because of its unique chemical structure, which is unlike that of any other fungicide…