10th treatment this morning (compared to 8 last year)

We decided to increase the dose of copper (400g per hectare), 2 kilos of sulphur, hydrolates, magnesium and Kane. This brings us to a total of 1.7kg of copper per hectare. With this treatment, we want to prevent any new contamination. We should do another pass on Friday, which could, hopefully, be the last. We need to hold out until mid-July, after which downy mildew will no longer attack the grape bunches.