It may be helpful to lightly water the greens at daylight to wash dew off the foliage. Not only will that speed drying, but it may help reduce disease development and leaf tip burning attributed to leaf exudates. Newly overseeded sites should not be kept wet and should not be allowed to become excessively dry. Close attention to watering is important for the first several weeks after planting to establish the grass and provide playable conditions. Avoid late evening watering that keeps grass moist all night.
Diseases can develop and spread rapidly when grass remains moist overnight.
After seedlings emerge, light applications of nitrogen will help produce a dense, healthy stand of grass. Very low rates of soluble nitrogen, such as 2 to 4 ozs. Seedling diseases such as Pythium and brownpatch must be controlled to maintain a thick, healthy stand of winter grasses. Application of a preplant fungicide and the use of treated seed will go a long way toward producing a disease-free turf. Diseases are much more effectively controlled on a preventative rather than a curative basis.