There are several things that you can do, to help prevent snow mold. Avoid late fall applications of fertilizer that would stimulate succulent growth. Such growth is very susceptible to infection. Also continue to mow turf as long as it continues to grow in the fall, and avoid compacting snow over the lawn. Where snow molds have caused damage, rake the matted grass in order to encourage new spring growth. If re-seeding areas where these diseases have been a problem, use disease resistant turf grass varieties.
If snow molds have been severe or wide-spread in past years, or if you are growing a susceptible variety, a preventative fungicide program may be used. Fungicide applications should be made in late autumn just before permanent snow cover is expected and, if possible, during a mid-winter thaw.Remedy is a fungicide for the control of Powdery Mildew and other diseases on terrestrial and indoor ornamental plants, greenhouse and garden crops and turf. Contains a spreader and sticker, for maximum effectiveness.