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Wine Grape Agronomy

Wine grape agronomy

Total Grower Services wine grape agronomists have been working with Tyrrell's wine grapes since 2010 when they suffered some vine damage from Sprayseed herbicide used to control interow weeds. The herbicide was applied at too high a pressure and resulted in severe damage to the vines.

Andrew Pengilly's initial assessment was that the vines were a write-off. However, after a suggestion of a combination of Petrik Rescue and Response, Andrew took 5L of each to try. The response of the treated vines was so significant Andrew came back for another 60L of each product and then also went on to treat wind damaged vines.

Since then we have continued to work with Tyrrell's to increase yield on underperforming blocks in the vineyard. This has been based around the Petrik soil testing system along with applications of Digestor and Green Manure Plus to adjust the soil's chemistry. On the Vat 47 label Chardonnay this has improved yield by nearly 40%.