Overseeding sports pitches
For many reasons perennial rye grass is still the number one choice due to its excellent wear tolerance and short establishment windows. Turfquicks Speedy Green and Rapide mixtures never contain only one Lolium perenne cultivar. Monocultures are generally more susceptible to disease, which will cause still more rapid thinning of the sward. If you apply little or no fertiliser consider mixtures with ryegrasses which can perform with lower nutrient inputs.
However if you have an adequate renovation window, a specific site or maintenance constraint consider other species. Whichever mixture you choose from this catalogue always consider the species percentages and cultivar characteristics, sowing depths, available establishment window, soil temperatures, Mowing heights, nutritional inputs, soil type, disease susceptibility and of course wear. Poa pratensis offers excellent recovery through its ability to produce rhizomes but both recovery and establishment can be notoriously slow. However, cultivars show big differences in performance not only in speed of establishment but also in the ability to germinate at cooler temperatures. If you are looking for such a specific mixture we can advise you!
Overseeding golf courses
Bentgrass (Agrostis capillaris or Agrostis stolonifera) seeds are extremely small and should be surface sown in good contact with the root zone. When overseeding with Agrostis, the recommended sowing depths are below any thatch layer. The seed must always be in good contact with the root zone to have a chance of establishing successfully, so try to work as much seed as possible through the thatch layer by whatever means you have available (micro tining, verti cutting, thatch away units etc.)
Overseeding with bentgrass may lead to the conversion of poa annua greens into predominantly bentgrass greens, with all the benefits this brings. This normally takes four to five years when considering the correct time of sowing, not too cold soil temperatures and adequate irrigation during germination.