Brown ring patch (Waitea) and nitrogen: a surprising benefit

In our May 26, 2008 PACE Update, we wrote about preliminary field trial results on brown ring patch (caused by Waitea circinata). With the trial now completed, we were thrilled to see our earlier results confirmed. That is, that brown ring patch (BRP) symptoms are very successfully suppressed by application of nitrogen, as this photo shows.

In this trial, which was conducted with investigators Frank Wong and Chi-Men Chen (UC Riverside) and Larry Stowell (PACE), three different nitrogen sources were…