# List of avocado diseases

This article is a list of diseases of avocados (Persea americana).

## Bacterial diseases

Bacterial diseases :
| Bacterial canker | Pseudomonas syringae Xanthomonas campestris |
| Blast and bacterial fruit spot | Pseudomonas syringae |
| Crown gall | Agrobacterium tumefaciens |

## Fungal diseases

Fungal diseases :
| Anthracnose | Colletotrichum gloeosporioides Glomerella cingulata [teleomorph] |
| Armillaria root rot Shoestring root rot | Armillaria mellea Rhizomorpha subcorticalis [anamorph] |
| Black mildew | Asteridiella perseae Irene perseae |
| Branch canker | Botryosphaeria disrupta Botryosphaeria obtusa Physalospora obtusa Botryosphaeria quercuum Physalospora glandicola Botryosphaeria rhodina Physalospora rhodina Physalospora abdita Physalospora fusca |
| Butt rot | Ganoderma zonatum Ganoderma sulcatum |
| Cercospora spot (blotch) | Pseudocercospora purpurea |
| Clitocybe root rot | Armillaria tabescens Clitocybe tabescens |
| Collar rot | Sclerotinia sclerotiorum |
| Dematophora root rot | Dematophora necatrix Rosellinia necatrix [teleomorph] |
| Dieback | Diplodia cacaoicola Phomopsis sp. |
| Fruit rot (includes stem end rot & fruit spots) | Botryodiplodia spp. Botryosphaeria obtusa Botryosphaeria quercuum Botryosphaeria rhodina Botrytis cinerea Botrytis vulgaris Botryotinia fuckeliana [teleomorph] Colletotrichum gloeosporioides Cylindrocladium scoparium Calonectria kyotensis [teleomorph] Dothiorella aromatica Dothiorella gregaria Fusarium decemcellulare Albonectria rigidiuscula [teleomorph] Lasiodiplodia theobromae Diplodia natalensis Nectria pseudotrichia Tubercularia lateritia [anamorph] Pestalotia spp. Pestalotiopsis versicolor Phomopsis perseae Rhizopus stolonifer Sclerotinia sclerotiorum Sclerotinia libertiana |
| Heart rot | Oxyporus latemarginatus Poria latemarginata |
| Leaf spots | Bipolaris sorokiniana Cochliobolus sativus [teleomorph] Pestalotia spp. Pestalotiopsis adusta Phyllachora gratissima Phyllosticta micropuncta Phyllosticta perseae |
| Phomopsis spot | Phomopsis spp. |
| Physalospora canker | Physalospora perseae |
| Phytophthora crown rot | Phytophthora cinnamomi Phytophthora citricola |
| Phytophthora trunk canker | Phytophthora cinnamomi Phytophthora citricola Phytophthora heveae |
| Phytophthora root rot | Phytophthora cinnamomi |
| Pink rot | Trichothecium roseum Cephalothecium roseum |
| Powdery mildew | Oidium spp. |
| Rhizoctonia seed and root rot | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Root and bark rot | Fusarium spp. |
| Root rot | Pythium spp. |
| Rosellinia root rot | Rosellinia bunodes |
| Rusty blight | Colletotrichum gloeosporioides Colletotrichum nigrum |
| Scab (fruit & leaf) | Sphaceloma perseae |
| Seedling blight | Phytophthora palmivora Sclerotium rolfsii Athelia rolfsii [teleomorph] |
| Smudgy spot | Helminthosporium spp. |
| Sooty blotch | Akaropeltopsis sp. |
| Tar spot | Phyllachora gratissima |
| Verticillium wilt | Verticillium dahliae |
| Wood rots | Fomitopsis supina Polyporus supinus Laetiporus sulphureus Polyporus sulphureus Sporotrichum versisporum [anamorph] Rigidoporus ulmarius Fomes geotropus Trametes hirsuta Polyporus hirsutus |

## Viruslike diseases

Viruslike diseases :
| Sunblotch | Avocado sunblotch viroid |
| Trunk pitting | Graft transmissible agent |

## Miscellaneous diseases and disorders

Miscellaneous diseases and disorders :
| Algal spot | Cephaleuros virescens Kunze |
| Blackstreak | Unknown cause |
| Dieback | Copper deficiency |
| Edema | Physiological |
| Littleleaf rosette | Zinc deficiency |
| Tipburn | Excess mineral salts |