Canopy management against botrytis control
The effectiveness, measured
Time horizon: 1 season
Why it works
Opening the cluster zone is the most effective preventive measure against botrytis, drying out the microclimate it depends on.
What to measure for this pairing
Why this problem matters
Botrytis (Botrytis cinerea) sets up in compact clusters, wounds and humid microclimate, especially near harvest. Organic has no systemic curatives: defence is essentially preventive.
The priority is to lower the risk — open the cluster zone, avoid excess vigour and protect skin integrity — and reinforce with biocontrol agents. Deciding on cluster compactness and weather avoids pointless treatments.
Problem indicators
Certification & rules: Critical for grape health and avoiding off-flavours in the wine.
How to apply the means
- 1Remove leaves in the cluster zone after fruit set.
- 2Manage vigour and canopy height to open the canopy.
- 3Favour morning-sun-side leaf removal in hot climates.
- 4Log operations and the effect on disease risk.
Frequently asked
Doesn’t leaf removal expose clusters to sunburn?
In hot climates, yes, if excessive or on the afternoon-sun side. Moderate, morning-side leaf removal balances health and sunburn protection.
Does canopy management replace treatments?
It does not replace them, but it greatly cuts pressure and the number of treatments needed — the prevention that makes the organic programme viable.
Same means, other problems
Same problem, other means — Botrytis
How GrapeFlow helps
The proof organic certification demands — logged by plot and date.
Downy & powdery mildew risk models
Per-plot disease risk from local weather, to treat at the right moment and spend less copper and sulfur.
Electronic field notebook
All operations — weeding, green manure, biocontrol — logged by plot and date, ready for organic certification.
Phytosanitary register with authorised inputs
Every treatment logged with product, rate and active substance, flagging what is allowed under organic rules — an audit-ready history.