| Miscellaneous diseases and disorders | |
|---|---|
| Aerial tubers | Phytoplasma infection or anything that constricts the stem, including but not limited to Rhizoctonia canker, heat necrosis, chemical injury, mechanical injury, wind injury |
| Air pollution injury | Photochemical oxidants (primarily ozone), sulfur oxides |
| Black heart | Oxygen deficiency of internal tuber tissue |
| Blackspot bruise | Bruising, pressure contact |
| Elephant hide | Roughening of tuber skin due to physiological or environmental causes |
| Hollow heart | Excessively rapid tuber enlargement |
| Internal brown spot = heat necrosis | Oxygen deficiency of tuber accompanying high soil temperature |
| Jelly end rot | Carbohydrate translocation due to second growth |
| Physiological leaf roll | Response to adverse environment |
| Psyllid yellows | Toxic saliva of the potato (tomato) psyllid, Paratrioza cockerelli |
| Shatter bruise | Mechanical damage to tuber |
| Skinning | Mechanical damage to tuber |
| Stem-end browning | Exact cause(s) unknown, chemical injury, viruses or other pathogens. |
Read more about this topic: List Of Potato Diseases
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