Rapid blight can be a summertime disease too

If you assume that rapid blight is primarily a cool-weather disease, you will unfortunately have to think again. Over the past few years, we have seen increasing numbers of diagnoses during the spring, summer and fall on poa greens, on overseeded rye and Poa trivialis and on bentgrass greens.

A few important things to remember about rapid blight:

- Its major targets are poa and ryegrass, but it can attack bentgrass as well. The organism that causes rapid blight, Labyrinthula…