Lawn and Turf: 2,4-D damage Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-22 09:57 Last edit date: 2,4-D damage to grass Photo by: Beth Staley Biology Bentgrasses are commonly used for lawns in western Washington and found as weeds in eastern and western Washington. Both weedy species and cultivated varieties are […]
Lawn and Turf: Algae Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-08-28 02:29 Last edit date: Black algae Photo by: G. Stahnke Biology Algae are tiny, single-celled plants commonly found in lakes and wet areas. Algal growth on lawns is common in the coastal regions of the Pacific Northwest, particularly on […]
Lawn and Turf: Anthracnose/Basal crown rot Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-24 09:53 Last edit date: Basal crown rot Photo by: R.S. Byther Biology Anthracnose of turfgrass is a fungal disease with two phases: Phase I affects the leaves and is active in the summer. Typical symptoms include yellow […]
Lawn and Turf: Brown blight Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-24 10:26 Last edit date: Brown blight Photo by: R.S. Byther Biology Brown blight is a fungal disease affecting the leaves of perennial ryegrass and some fine fescues. infection commonly occurs during cool, wet periods. The disease is typically […]
Lawn and Turf: Brown patch Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-24 10:55 Last edit date: Brown patch Photo by: G. Stahnke Biology Brown patch is a fungal disease typically affecting bentgrasses and annual bluegrasses. Infected grass appears as patches a few inches to several feet in diameter. The patches […]
Lawn and Turf: Curvularia blight (Fading out) Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-24 02:18 Last edit date: Biology Curvularia blight of turfgrass can be caused by eight species of fungi. Infected areas of lawn develop yellow or dappled yellow-green patches 2 to 3 inches in diameter. These patches later […]
Lawn and Turf: Dog injury Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-24 02:59 Last edit date: Dog damage dead patch Photo by: R.S. Byther Biology Dog injury typically appears on lawns as brown, circular patches a few inches in diameter. These patches may be surrounded in a few days by […]
Lawn and Turf: Dollar spot Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-24 03:11 Last edit date: Dollar spot Photo by: G. Stahnke Biology Dollar spot is a fungal disease that affects most turfgrass species under low fertility. Leaves develop water soaked, dark lesions which become light tan with a reddish-brown […]
Lawn and Turf: Fairy ring and mushrooms Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-30 11:23 Last edit date: Fairy ring and mushrooms Photo by: R.S. Byther Biology Several species of fungi can cause fairy rings in lawns. The common symptoms may include a ring of dead grass with darker green […]
Lawn and Turf: Leaf spot Categories: Lawn and Turf Lawn and Turf Diseases Last review date: 2026-06-30 12:11 Last edit date: Drechslera leaf spot Photo by: R.S. Byther Biology Fungal diseases of turf caused by Drechslera sp. include leaf spot and melting-out, root, crown, and rhizome rots, and net blotch. Leaf spots first appear as […]