Photo of the week: large patch in Hanoi

Large patch is a major problem of Zoysia japonica swards in locations where average winter temperatures drop below 68 °F (20 °C). A few years ago I was in Hanoi on January 6 and took this photo of large patch symptoms on a small nursery of Zoysia japonica.

You can use your threat temperature forecast from PACE Turf to check the large patch activity risk at your location.

See this reference on threat temperatures with answers to many frequently asked…