Methods of protection

As for the other microorganisms responsible for rots on grape berries, we advise you to consult the protection methods implemented to control gray rot ( Botrytis cinerea ) . Indeed, many of them are effective against acid rot. In addition, we advise you to:

• Be particularly vigilant on sensitive grape varieties with thin skin, such as muscat à petits grains, muscat d'Alexandrie, cinsault, alicante, syrah, sauvignon, mourvèdre, etc.
• Avoid injuring the berries.
• Promote aeration of the bunches:
  • avoid piling up of vegetation around the fruiting zone and trellis on several wires;
  • promote manual leaf stripping around the bunches;
  • make a thinning of the clusters.

• Control the vigor of the vine:
  • choose a poorly vigorous rootstock;
  • control fertilization, especially nitrogen, reduce it if necessary;
  • grass eventually .

• Control the development of other pests in the cluster ( eudemias , cochylis , powdery mildew, etc. ).
• Eliminate the first attacked bunches.
• Eliminate the causes favoring the development of flies: development of rots, decomposing fruits left near the plots, thinning waste abandoned under the stumps.
• Eliminate cellar waste near the vineyard plots.
• Apply insecticides if necessary ( e-phy ) in order to control the populations of Drosophila spp . Beware of the effect of these treatments on auxiliaries, and take into account the possibility of product (s) residues. It should be noted that controlling fruit flies in the vineyard is rather difficult because their development is very unpredictable.