Poa seedhead season starts early

The mild winter is generating early poa seedhead development in many parts of the country. This is confirmed by the growing degree day models available in your PACE Turf weather alerts.

For example, in Danville, VA, where superintendents are reporting the first flush of poa seedheads, they have accumulated 302 GDD32 (growing degree days, base 32F) and 18 GDD50, according to the PACE Turf degree days model. According to the scientific literature, poa seedheads show up at 200–500 GDD32 and…