Frost: nf Frost is the state of temperature when it drops below zero on the thermometric scale and causes water to freeze.
- Autumn frost: If the temperature is below -5°, this frost can then cause damage only to the grapes that are not yet ripe.
- Spring frost: during the frosts that occur in April or May, if the temperature drops to minus 2° for more than an hour, the buds of the vine stock are then affected....
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