Lawn and Turf: 2,4-D damage categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-30 11:20 2,4-D damage to grassPhoto 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 susceptible to damage by 2,4-D, […]
Lawn and Turf: Algae categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-30 11:14 Black algaePhoto 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 grass planted in wet, low-lying, […]
Lawn and Turf: Anthracnose/Basal crown rot categories: Lawn and Turf Lawn and Turf Diseases revision date: 2023-04-12 12:00 Basal crown rotPhoto 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 to tan or brown lesions […]
Lawn and Turf: Brown blight categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-30 11:08 Brown blightPhoto 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 worse during the first fall […]
Lawn and Turf: Brown patch categories: Lawn and Turf Lawn and Turf Diseases revision date: 2023-04-12 12:00 Brown patchPhoto 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 are generally circular and light […]
Lawn and Turf: Curvularia blight (Fading out) categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-30 10:20 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 turn reddish-brown. The patches […]
Lawn and Turf: Dog injury categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-30 10:11 Dog damage dead patchPhoto 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 a ring of darker green, […]
Lawn and Turf: Dollar spot categories: Lawn and Turf Lawn and Turf Diseases revision date: 2023-04-04 12:00 Dollar spotPhoto by: G. Stahnke Biology Several species of fungi can cause fairy rings in lawns. Common symptoms may include a ring of dead grass with darker green grass and mushrooms on the inside and/or the outside of […]
Lawn and Turf: Fairy ring and mushrooms categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-29 12:41 Fairy ring and mushroomsPhoto 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 grass and mushrooms on the […]
Lawn and Turf: Leaf spot categories: Lawn and Turf Lawn and Turf Diseases revision date: 2022-10-29 12:30 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 small, water-soaked areas that […]