apple scab disease

apple scab disease

[′ap·əl ¦skab diz‚ēz]
(plant pathology)
A plant disease caused by the fungus Venturia inaequalis that may cause premature defoliation, June drop of young fruits, and unsightly blemishes on ripe apples.
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References in periodicals archive ?
Krause agrees: "We'll be seeing things we could only infer before." He's already used the microscopes to see the spores of the fungus that causes apple scab disease as they emerge from crabapple leaf surfaces.
AIT sounds like apple scab disease. This is caused by a fungus which thrives in moist weather, so the rain we've had recently has made it a common problem.
His enemy: a destructive fungi, called Venturia inaequalis (ven-TUR-ee-ya in-uh-KWA-lis) that causes apple scab disease. The fungus leaves nasty-looking black splotches on a McIntosh.