Extension > Fruit > Apple > Spots/blotches are depressed, dimpled, or cracked
Apples > Fruit > Spots/blotches are depressed, dimpled, or cracked
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Apple Scab
Venturia inaequalis
- Brown raised corky spots on fruit
- Severely infected fruit may be deformed and cracked
- Olive green to brown leaf spots with an irregular or feathered edge, eventually becoming a dark brown to black
- Infected leaves turn yellow and drop prematurely
- More information on Apple Scab
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Apple Curculio
Anthonomus quadrigibbus
- Adult weevils makes small punctures by feeding and laying eggs in the apple, resulting in a round tan spot and lumpy/misshapen fruit
- Adult weevil is reddish brown, ¼ inch long, with four bumps on their backs
- Weevils are present in early spring
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Obliquebanded Leafroller
Choristoneura rosaceana
- Early season larvae feed inside bud clusters and developing fruit, resulting in fruit drop or corky scars on the fruit
- Late season larvae can scar the fruit
- Early season larvae feed on the undersurface of a leaf along the midrib or other large vein
- Larvae are yellow-green and 1 inch in length when mature
- Adult moth is reddish-brown with brown bands on the wings
- More information on Obliquebanded Leafroller
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Redbanded Leafroller
Argyrotaenia velutinana
- Fruit injury is usually shallow with ragged edges and thick, corky tissue over the damaged area
- Larvae skeletonize leaves from the underside, folding and webbing the leaves together
- Larvae are green with a green head, and reach about ½ inch at maturity
- Larvae are present early May – June
- Adults have distinct red-brown bands on the forewings that form a V-shape when at rest, and are about ¼" in length
- More information on Redbanded Leafroller
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White Rot
Botryosphaeria dothidea
- Sunken brown spots on fruit, can grow to rot part or all of fruit
- Fruit rot is soft, watery and extends to the core of the apple
- Small blister like spots on branches exude, watery fluid
- Branch infections grow to cracked, flakey, orange canker
- Leaves on girdled branches wilt, die and turn brown
- More information on White Rot
