Venturia inequalis
Quick Summary
Venturia inaequalis is an ascomycete fungus that causes apple scab, a significant disease affecting apple and crabapple trees. This disease is most prevalent in cool, moist spring and summer conditions, leading to substantial crop losses for growers.1
Apple scab manifests as dark lesions on leaves, fruit, and young twigs. Infected leaves may become deformed, and affected plants might shed their fruit prematurely. While all apple species are susceptible, some cultivars exhibit greater resistance. The most effective control measure is regular spraying with fungicides.1
Scab is a general term for plant diseases characterized by crusty lesions on various plant parts, caused by either bacteria or fungi.2
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Ascomycotaparasitica), and apple scab (Venturia inequalis).
Read Moreparasitica), and apple scab (Venturia inequalis).
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apple scabcaused by the ascomycete fungus Venturia inaequalis. Apple scab is found wherever apples and crabapples are grown but is most severe where spring and summer are cool and moist. The disease can cause high crop losses and is thus of economic import to apple growers.
Read Morecaused by the ascomycete fungus Venturia inaequalis. Apple scab is found wherever apples and crabapples are grown but is most severe where spring and summer are cool and moist. The disease can cause high crop losses and is thus of economic import to apple growers.
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plant diseasePathogenesis and saprogenesisbodies; the apple scab (Venturia inaequalis), for example, produces perithecia, flask-shaped spore-producing structures, in fallen apple leaves. Other fungi produce compact resting bodies, such as the sclerotia formed by certain root- and stem-rotting fungi (Rhizoctonia solani and Sclerotinia sclerotiorum) or the ergot fungus (Claviceps purpurea). These resting bodies, which
Read Morebodies; the apple scab (Venturia inaequalis), for example, produces perithecia, flask-shaped spore-producing structures, in fallen apple leaves. Other fungi produce compact resting bodies, such as the sclerotia formed by certain root- and stem-rotting fungi (Rhizoctonia solani and Sclerotinia sclerotiorum) or the ergot fungus (Claviceps purpurea). These resting bodies, which
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