| English Name | Latin Name | Description | W/O
MC | With
MC | | EscaBlack-dead-arm | Stereum hirsutum, Phellinus ignarus et Botryosphaeria obtusa, Botryosphaeria dothidea parva et stevensii | These fungi are the result of ruptured sap circulation in the trunk.
| 
| 
| | Excoriosis | Phomopsis viticola | This causes vine shoots to swell and crack. It leads to burst prunings that break away from the stock. It can also attack grape bunches and trigger their drying.
|  | | | Eutypiosis | Eutypa lata | At the onset of growth, stunting of the plant can be seen. The growth of shoots emerging from an infected branch is slowed down, with the appearance of very short, albeit consistent, internodes.Smaller than usual, leaves are of a pale green color and often deformed, with marginal necroses that may extend over the entire limb. Inflorescences, if they do not dry up prior to flowering, exhibit an upright habit, and afterward generally undergo extensive drop. |
|
| | Root rot | Armillaria mellea et Rosellinia necatrix
| Root rot occurs on wood, including roots. The uppermost roots grow at the expense of the more deeper ones. Affected stock rapidly weakens and withers away in two or three years.
|
|
| | Powdery mildew | Uncinula necator
| Occurs on every green organ. Contaminated grape bunches and grapes become covered with a fine, grayish powder that causes black necroses. Growth of affected parts is halted, while the healthy part of the grape continues to grow; consequently the berries burst, allowing the pips to show.These lesions are highly conducive to penetration of gray-mold rot, and compromise harvesting.Grape bunches affected by powdery mildew can impart a false taste to the wine.
|
|
| Gray-mold rot
| Botrytis cinerea
| After veraison and as harvest time approaches, contaminated grapes become brown or lilac in color, bursting open and the lesion becomes covered with mold.
|
|
| Mildew
| Plasmopara viticola | Occurs on every green organ: branches, leaves, bunches and tendrils. The disease leads to leaf drop and consequently delayed ripeness, lower alcohol content, poor lignification of wood, increased sensitivity to frost, delayed budding, and an unfavorable effect on output and quality.
|
|
| | Black-rot | Guignardia bidwellii
| Black rot attacks every herbaceous organ of the vine. Berry sensitivity is very important from the “setting” stage to the “bunch closing” stage. Sensitivity gradually decreases while progressing toward the “veraison” stage, owing to an increase in sugar richness inside the berry.
| |
| | Rot-brenner or grapevine red fire disease | Pseudopeziza tracheiphila
| The leaves of affected vines turn red or yellow, then dry up, which leads to a weakening of stock and leaf drop.
|
| | | White rot | Coniella diplodiella | White rot develops when grapes are injured, therefore often appearing following hail, and requiring a suitable treatment immediately after a storm.
| | | | Anthracnosis | Sphaceloma ampelinum | Brown, then black spots on leaves, black spots on branches, pink-gray spots in the center of grapes, and purplish-black around the edges.
| | |
|
Vine diseases 
