apple scab
noun
: a disease of apple trees caused by a fungus (Venturia inaequalis) producing dark blotches or lesions on the leaves, fruit, and sometimes the young twigs
Examples of apple scab in a Sentence
Recent Examples on the Web
For example, a fungicide can only help control apple scab on a flowering crabapple tree if it’s sprayed just when the leaf buds are opening in spring.
—
Beth Botts, Chicago Tribune, 11 Apr. 2026
Neem oil is a natural fungicide that helps to control common apple diseases like apple scab, rust and powdery mildew.
—Steve Bender, Southern Living, 12 Apr. 2025
For example, growing chives near fruit trees reduces the incidence of apple scab and repels certain types of tree borers that might otherwise do major damage to home orchards.
—Lauren Landers, Better Homes & Gardens, 16 Feb. 2025
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Beth Botts, Chicago Tribune, 11 Apr. 2026
Neem oil is a natural fungicide that helps to control common apple diseases like apple scab, rust and powdery mildew.
—Steve Bender, Southern Living, 12 Apr. 2025
For example, growing chives near fruit trees reduces the incidence of apple scab and repels certain types of tree borers that might otherwise do major damage to home orchards.
—Lauren Landers, Better Homes & Gardens, 16 Feb. 2025
Cite this Entry
“Apple scab.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/apple%20scab. Accessed 22 Apr. 2026.
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