Open Access
Table 1.
Pathocomplex of causative agents of the main rot of the domestic apple tree in the South of Russia (2019)
| Genera | The frequency of occurrence of pathogens, % | The number of isolates, pieces | |||
|---|---|---|---|---|---|
| Rostov region | Krasnodar region | Belgorod region | Karachay-Cherkess Republic | ||
| Fusarium spp. | 112 | 98 | 34 | 20 | 264 |
| Alternaria alternata | 29 | 28 | 13 | 1 | 71 |
| Aspergillus niger | 25 | 25 | 6 | 3 | 59 |
| Agrobacterium tumefaciens | - | 12 | - | - | 12 |
| Cytospora spp. | - | - | 9 | - | 9 |
| Cladosporium spp. | - | 6 | - | - | 6 |
| Cylinrocarpon spp. | - | 3 | - | 1 | 4 |
| Rhyzoctonia spp. | - | 2 | - | - | 2 |
| Pythium spp. | - | - | - | 2 | 2 |
| Phomopsis mali | - | 1 | - | - | 1 |
| Coryneum microstictum | - | - | - | 1 | 1 |
| The number of examined seedlings affected by root rot, pcs. | 48 | 38 | 17 | 12 | |
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