General view of vineyards, as the spread of the coronavirus disease (COVID-19) continues, in Langhe-Roero area, Cuneo, Italy April 18, 2020. REUTERS/Massimo Pinca 

Grape vines for the Italia variety of grape are seen in Noicattaro, a major area of grape production in the southern Italian region of Puglia, Italy, February 11, 2020. Picture taken February 11, 2020. REUTERS/Giancarlo Navach 

Grape vines for the Italia variety of grape are seen in Noicattaro, a major area of grape production in the southern Italian region of Puglia, Italy, February 11, 2020. Picture taken February 11, 2020. REUTERS/Giancarlo Navach 

Grape vines for the Italia variety of grape are seen in Noicattaro, a major area of grape production in the southern Italian region of Puglia, Italy, February 11, 2020. Picture taken February 11, 2020. REUTERS/Giancarlo Navach 

Riesling grapes are pictured during harvest at the Weingarten vineyard at Berlin's district Kreuzberg Friedrichshain, Germany, September 11, 2019. Since 1968, the local department of the Environment and Nature of Berlin's district Kreuzberg plant over decades about 300 Riesling and Pinot Noir grapevines, which now produce each year a stable vintage of about 400 kilograms. REUTERS/Fabrizio Bensch 

The sugar concentration in juice of Riesling grapes at about 80 degrees at Oechsle scale is displayed in a refractometer before the harvest of grapes at the Weingarten vineyard at Berlin's district Kreuzberg Friedrichshain, Germany, September 11, 2019. Since 1968 the local department of the Environment and Nature of Berlin's district Kreuzberg planted over decades about 300 Riesling and Pinot Noir grapevines, which now produce each year a stable vintage of about 400 kilograms. REUTERS/Fabrizio Bensch 

Head of the "Kouroum of the Nile" winery, Labib Kallas, holds a glass of white wine in El Gouna, Egypt November 15, 2018. Picture taken November 15, 2018. REUTERS/Mohamed Abd El Ghany 

Red wine is poured into a glass at the "Kouroum of the Nile" winery in El Gouna, Egypt November 15, 2018. Picture taken November 15, 2018. REUTERS/Mohamed Abd El Ghany 

A worker uses a tractor in his autumn colored vineyard in Quinsac near Bordeaux, France, November 19, 2018. REUTERS/Regis Duvignau 

Autumn colored vineyard is pictured in Quinsac near Bordeaux, France, November 19, 2018. REUTERS/Regis Duvignau 

Autumn colored vine leave is pictured in Quinsac near Bordeaux, France, November 19, 2018. REUTERS/Regis Duvignau 

Autumn colored vine leave is pictured in Quinsac near Bordeaux, France, November 19, 2018. REUTERS/Regis Duvignau 

Autumn colored vine leave is pictured in Quinsac near Bordeaux, France, November 19, 2018. REUTERS/Regis Duvignau 

Vineyards are pictured on an autumn day in Saint-Fiacre-sur-Maine, near Nantes, France, October 23, 2018. REUTERS/Stephane Mahe 

Morning breaks over the grape vines at Dragasi domain, near Dragasani, Romania October 23, 2018. REUTERS/Radu Sigheti 

Morning breaks over the grape vines at Dragasi domain, near Dragasani, Romania October 23, 2018. REUTERS/Radu Sigheti 

Vineyard are pictured at Chateau du Pavillon in Sainte-Croix-Du-Mont vineyard, France, October 22, 2018. REUTERS/Regis Duvignau 

Vineyards are seen in Barolo, Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Vineyards are seen in Barolo, Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Vineyards are seen in Barolo, Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Cages full of red wine grapes are seen during harvest in Barolo, northern Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Cages full of red wine grapes are seen during harvest in Barolo, northern Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Wineyards are seen in Barolo, northern Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Clusters of red wine grapes hang from a vine before being recollected during harvest in Barolo, northern Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Owner Ferruccio Grimaldi tastes a Barolo red wine in the Grimaldi's cave in Barolo, northern Italy, October 19, 2018. REUTERS/Stefano Rellandini 

Protective gloves and scissors used by temporary workers during harvest are seen along white wine grapes in Moradillo de Roa, central Spain, October 2, 2018. Picture taken October 2, 2018. REUTERS/Sergio Perez 

Israeli winery, Domaine du Castel's vineyard is seen at Ma'ale HaHamisha, central Israel October 18, 2018. REUTERS/Ronen Zvulun 

A vine leaf is seen at Domaine du Castel's vineyard in Ma'ale HaHamisha, central Israel October 18, 2018. REUTERS/Ronen Zvulun 

Israeli winery, Domaine du Castel's vineyard is seen on a misty morning at Ma'ale HaHamisha, central Israel October 18, 2018. REUTERS/Ronen Zvulun 

Wine barrels are seen at Domaine du Castel winery in Yad HaShmona, central Israel October 18, 2018. REUTERS/Ronen Zvulun 

A butterfly rests on a bunch of grapes hanging from a vine in a small vineyard located in the town of Flaibano, in the Friuli Venezia Giulia region of north-eastern Italy, October 14, 2018. Picture taken October 14, 2018. REUTERS/David Gray TPX IMAGES OF THE DAY 

A butterfly rests on a bunch of grapes hanging from a vine in a small vineyard located in the town of Flaibano, in the Friuli Venezia Giulia region of north-eastern Italy, October 14, 2018. Picture taken October 14, 2018. REUTERS/David Gray 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Chorherrenstift monastery is seen from a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Chorherrenstift monastery is seen from a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Leftover grapes are seen at a vineyard after the harvest in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Migrant workers pick grapes at a vineyard in Aylesford, Kent, Britain, October 5, 2018. Picture taken October 5, 2018. REUTERS/Dylan Martinez 

Migrant workers pick grapes at a vineyard in Aylesford, Kent, Britain, October 5, 2018. Picture taken October 5, 2018. REUTERS/Dylan Martinez 

Grapes are packed into a tractor as the mist rises at Chapel Down Winery's Kit's Coty vineyard in Aylesford, Kent, Britain, October 5, 2018. Picture taken October 5, 2018. REUTERS/Dylan Martinez 

The sun shines on grapes at Chapel Down Winery's Kit's Coty vineyard in Aylesford, Kent, Britain, October 2, 2018. Picture taken October 2, 2018. REUTERS/Dylan Martinez 

The sun shines on grapes at Chapel Down Winery's Tenterden Vineyard in Tenterden, Kent, Britain, October 5, 2018. Picture taken October 5, 2018. REUTERS/Dylan Martinez 

Riesling grapes are seen during harvest at the Weingarten vineyard at Berlin's district Pankow Prenzlauer Berg, Germany, October 7, 2018. Since 2000, the Department of the Environment and Nature of Berlin's district Pankow Prenzlauer Berg plant with the help of the Berlin Weingarten friends' association about 600 Riesling grapevines, which now produce this year a stable vintage of about 1000 kilograms. REUTERS/Fabrizio Bensch 

A wine enthusiast and volunteer poses with a Riesling grape during harvest at a the Weingarten vineyard at Berlin's district Pankow Prenzlauer Berg, Germany, October 7, 2018. Since 2000, the Department of the Environment and Nature of Berlin's district Pankow Prenzlauer Berg plant with the help of the Berlin Weingarten friends' association about 600 Riesling grapevines, which now produce this year a stable vintage of about 1000 kilograms. REUTERS/Fabrizio Bensch 

Grapes are pictured at Bhamdoun town, in the Mount Lebanon Governorate, Lebanon September 6, 2018. Picture taken September 6, 2018. REUTERS/Jamal Saidi 

Grapes are pictured in the town of Bhamdoun, Lebanon, September 6, 2018. Picture taken September 6, 2018. REUTERS/Jamal Saidi 

Grapes are pictured at Bhamdoun town, in the Mount Lebanon Governorate, Lebanon September 6, 2018. Picture taken September 6, 2018. REUTERS/Jamal Saidi 

Grapes are pictured in a farm at Taanayel Monastery, in Lebanon's Bekaa Valley, September 15, 2018. Picture taken September 15, 2018. REUTERS/Jamal Saidi 

Bottles of red wine are displayed after it was filtered and before it ferments for 40 days in Dhiha village near Duhok, Iraq September 11, 2018. Picture taken September 11, 2018. REUTERS/Ari Jalal 

Red grapes are seen before getting squeezed and filtered then fermented for 40 days in Dhiha village near Duhok, Iraq September 11, 2018. REUTERS/Ari Jalal 

Grapes are seen in a vineyard after being picked by Gorgis, an Iraqi Christian wine maker, Alen, his son and Isaac, his grandson at Kani Plave village, near Gorgis' Dhiha village near Duhok, Iraq September 11, 2018. Picture taken September 11, 2018. REUTERS/Ari Jalal