Even rootzones on golf greens and soccer fields are getting older. Above all, due to the washing out of fines and due to compaction, the capillarity- / infiltration rate is often further reduced due to insufficient mechanical maintenance.

Rootzones with too high fine sand particles are particularly affected. These structures were often built too close to the upper limits of USGA or other given standards. The resulting negative consequences are very often difficult to see. Excessive moisture, especially in the lower area of ​​the rootzone, has been underestimated for too long and has now led to serious long-term problems of many rootzones worldwide. Maybe your rootzone show therefore now a high percentage of moss, algae, black layer, or too often diseases and too high proportions of Poa annua.

Due to the renovation of their rootzones (most greens were deep drilled to 50 cm depth), meanwhile 10 of my golf course clients have now succeeded in converting the majority of their greens from a high Poa annua content (70-100%) to a dominance of 50-90% Agrostis or Agrostis / Festuca.

So the new building of the historical putting greens in Hamburg Falkenstein (Colt 1930) in Germany and Hardelot de Pins (Simpson 1928) in France was thereby avoided.