If your lawn has problem areas due to disease, an accidental fertilizer spill or just an area where the grass plants are thin, Agway has solutions to fit your needs. There are 3 basic ways to repair problem areas: patching with sod, patching with seed and overseeding. The method you choose depends of what caused the need for repair and the season of the year. For small bare areas or those damaged by disease, sod or seed is best. Patching by overseeding is best used for larger areas where grass is thin. Repairing your lawn is best performed in the spring or fall. Timing also depends on the region you live in and the variety of grass you intend to use. Your Agway dealer can help you choose what's right for you.