Didymascella thujina — гриб-аскомицет семейства Helotiaceae. D. thujina вызывает пятнистость листьев кедра, болезнь листьев, на западном красном кедре и белом кедре.Википедия (Английский язык)
Cedar leaf blight is a well-known disease of western red-cedar (Thuja plicata) in the western United States and Canada. It has also been reported previously ...
Didymascella thujina is an ascomycete fungus in the family Helotiaceae. D. thujina causes cedar leaf blight (also known as Keithia blight or Keithia leaf ...
11 нояб. 2024 г. · The symptoms appear as small whitish spots on the upper leaf surface in the spring, initially on one-year-old foliage. They turn brown and cover ...
5 июн. 2024 г. · Leaf blight is a fungal disease. The symptoms typically appear first in late spring as bleached spots followed by brown or black cushion-like ...
Cedar leaf blight is a foliage disease of western redcedar that occurs throughout the range of its host in Southeast Alaska (see Detection Map). Affected ...
The characteristic signs and symptoms of the disease include individual infected brown leaflets scattered among the contrasting adjacent healthy green foliage.
Symptoms Small, bleached spots on the upper surface of one-year-old leaves appear first. One or several brown to black fruiting structures (apothecia) appear on ...
4 окт. 2022 г. · Symptoms on mature foliage first appear as several small, cream-coloured spots on the upper surface of individual cedar leaves. These spots ...