This may take several weeks if the damage is extreme, but stands often recover. Fungicides are rarely recommended due to the high potential for rapid recovery during the spring when tall fescue grows best. However, if conditions are favorable, damage can become quite alarming and unsightly as seen in the photos. In general, this is not a severe disease of tall fescue. Pycnidia are the fruiting bodies that produce conidia (spores) for this fungus.įigure 3 – Signs of Ascochyta leaf blight include pycnidia (fruiting bodies) that contain conidia (spores) along the blighted blade. If you look closely with a hand lens at the affected portion of the leaf blade, you will see brownish, red, or black pycnidia (Figure 3). The leaves will often appear shriveled and pointy, as seen in Figure 2. Individual leaves typically start dying from the tip back and bleached lesions may eventually develop along the entire leaf blade. As seen in Figure 1, stand symptoms may rapidly encompass large areas of uniformly blighted, straw colored turf. The pathogen only attacks the foliage therefore, damage is seldom permanent and recovery is quick under favorable growing conditions. As the name implies, the primary symptom is blighted leaves. This fungus has been documented on many turfgrasses, but more common on tall fescue, Kentucky bluegrass, and perennial ryegrass. Estoy de Acuerdo / I agreeįigure 1 – Typical stand symptoms of Ascochyta leaf blight in tall fescue lawns.Īscochyta leaf blight is caused by nearly 80 different species of Ascochyta. Please note that some applications and/or services may not function as expected when translated. NC State Extension does not guarantee the accuracy of the translated text. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. To the extent there is any conflict between the English text and the translation, English controls.Ĭlicking on the translation link activates a free translation service to convert the page to Spanish. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.Įnglish is the controlling language of this page. NC State Extension no garantiza la exactitud del texto traducido. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.Īl hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. El inglés es el idioma de control de esta página.
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