Miscellaneous diseases and disorders |
|
---|---|
Bitter pit | Localized calcium deficiency |
Blossom blast | Boron deficiency |
Burrknot | Genetically predisposed rootstock |
Fruit cracking | Genetic |
Fruit russet | Frost, sprays, etc. |
Green mottle | Unidentified |
Hollow apple | High temperature |
Internal bark necrosis = measles | Low pH and mineral nutrient imbalance |
Internal browning | Boron and calcium deficiencies, etc. |
Jonathan spot | Reduced by controlled atmosphere storage |
Narrow leaf | Genetic |
Necrotic leaf blotch of ‘Golden Delicious’ | Rapid synthesis of gibberellins triggered by environmental factors |
Storage scald | Injury to fruit surfaces by naturally occurring gases produced by the fruit |
Sunburn | Sun injury to fruit |
Sunscald | Freezing of bark following high temperatures in winter |
Water core | Sorbitol accumulation |
Read more about this topic: List Of Apple Diseases
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