French Wine Test Finds Pesticides in Each of 92 Bottles Analyzed

"Laboratory testing of 92 French wines from across the country found pesticide traces in every bottle, ... Wine producers in France account for 3.7 percent of farmland and 20 percent of the country’s pesticide use, the group said..."

... even bottles of 'organically grown' wine had traces of pesticides.

"The wines were tested using gas and liquid mass spectrometry that allowed detection of “very low” quantities of molecules of [between] 1 to 10 micrograms, ..."

The quantities are very low.  The larger impact is probably felt by field workers and any organisms, including people, downwind or downstream.

Lots of good ideas here: "Creating the Wines of Tomorrow", on Wine-searcher:

“Selecting varieties more resistant to disease seems to us the only solution for reducing pesticide use,” says Hernán Ojeda, an Argentinian engineer who is manager of the Pech Rouge experimental unit.

Vines are the second-most heavily sprayed plants in France, after apples, with spraying occurring between 6 and 20 times a season, depending on the region and the weather. Little trace of spraying remains in the wines, but the same cannot be said for the soils and run-off water.