Since October 2020, glyphosate has been banned in the inter-row of French vineyards, except on plots that cannot be mechanised (steep slopes, terraces, very stony soils). Under the row, its dose is capped at 450 g/ha/year.1
Some appellations go further. In Cognac, since January 2022 the AOC specifications have banned total chemical weeding of plots and headlands, and require vegetation in every inter-row to be controlled by mechanical or physical means.2
The result: more tractor passes. Mechanical weeding takes about 1 h 45 per hectare per pass, compared with 40 minutes for a herbicide, and you need around 4 passes a year.3 That all adds up in driver hours, diesel and compaction.