Periods of onset of symptoms on foliage of the main wood diseases
| Phenological stages | Eutypiose | Esca | Decline in Botryospheria |
| A - Winter bud | |||
| B - Cotton bud | |||
| C - Green tip | |||
| D - Leaving the leaves | |||
| E - Spread leaves | |||
| F - Visible clusters | |||
| G - Separate bunches | |||
| H - Separate flower buds | |||
| I - Flowering | |||
| J - Fruit set | |||
| K - Green peas | |||
| L - Closed bunches | |||
| M - Veraison | |||
| N - Maturity | |||
| O - Aoûtement | |||
| P - Falling leaves |
| = Significant manifestation of symptoms | |
| = moderate manifestation of symptoms |



