Apple scab produces which symptoms on leaves and fruit?

Apple scab produces which symptoms on leaves and fruit?

• A. Apple scab causes corky brown spots on fruit and velvety olive green spots on leaves.
• B. Overwintering orange Telia.
• C. Witches' broom on junipers.
• D. No symptoms on leaves.

Answer: (A)

Apple scab shows two hallmark symptom patterns: on leaves you see olive-green, velvety spots that can enlarge and darken, and on fruit you get corky, brown, scabby patches. The combination described—corky brown spots on fruit and velvety olive-green spots on leaves—fits exactly with how apple scab manifests in an orchard. The other descriptions don’t match this disease: overwintering orange telia are associated with rust fungi, not apple scab; witches’ broom on junipers is a symptom linked to rust diseases like cedar-apple rust; and having no symptoms on leaves would contradict the typical visible signs of apple scab.

Apple scab shows two hallmark symptom patterns: on leaves you see olive-green, velvety spots that can enlarge and darken, and on fruit you get corky, brown, scabby patches. The combination described—corky brown spots on fruit and velvety olive-green spots on leaves—fits exactly with how apple scab manifests in an orchard.

The other descriptions don’t match this disease: overwintering orange telia are associated with rust fungi, not apple scab; witches’ broom on junipers is a symptom linked to rust diseases like cedar-apple rust; and having no symptoms on leaves would contradict the typical visible signs of apple scab.