Growing healthy grass under shaded conditions is often a challenge for homeowners. Shade occurs, to some degree, in almost all lawns. Shade problems for turf may be reduced by improving the growing environment, selecting the proper variety of grass, or altering turfgrass management practices.

Take all patch is a disease of creeping bentgrass and can occur on golf course putting greens, tees and fairways.

Summer patch is perhaps the most important disease of Kentucky bluegrass in Connecticut and throughout the Northeastern United States. On golf courses in New England, summer patch is a major disease of annual bluegrass.

Red thread and pink patch can both occur on a variety of turfgrasses including ryegrasses, fescues, bluegrasses, and bentgrasses. Red thread, however, is generally the most severe of the two and may cause significant injury to both perennial ryegrass and creeping red fescue.

Necrotic ring spot is cause by a root-infecting fungus (Ophiosphaerella korrae) that affects Kentucky bluegrass and annual bluegrass.

Brown ring patch, also known as Waitea patch, is a “new” disease of annual bluegrass putting greens that has recently appeared in the western, Midwestern and northeastern United States.