Nigel Cattlin / Necrotic lesions and damage on the margin of a Pinot Noir grape leaf caused by magnesium deficiency. Champagne, France.

Eric Baccega / Pinot noir bunch of grapes, Champagne country, France

Eric Baccega / Women harvesting Pinot noir grapes during autumn, Chouilly, Cte de Blancs vineyard, Champagne country, France

Eric Baccega / Pinot noir grape harvest during autumn, Chouilly, Cte de Blancs vineyard, Champagne country, France

Nigel Cattlin / Grey mould (Botrytis cinerea) noble rot fungal development on mature Pinot Noir grapes at harvest, Champagne Region, France

Nigel Cattlin / Grapevine leaf roll virus symptoms on Pinot Noir grape leaves

Nigel Cattlin / Leafroll disease, grape leafroll asssociated viruses symptoms on Pinot Noir grape leaves , Champagne, France

Nigel Cattlin / Mature bunch of red Pinot Meunier grapes on the vines with leaves turning in a Champagne Region vineyard, France

Nigel Cattlin / Leaves reddening, and fruit bunch of a Pinot Noir grapes on the grapevine in the Champagne Region of France

Nigel Cattlin / Mature bunch of red Pinot Noir grapes on the vine in a Champagne Region vineyard, France,

Nigel Cattlin / Magnesium deficiency symptoms, reddening of leaves on Pinot Noir wine grapes in fruit, Champagne Region, France

Nigel Cattlin / Interveinal leaf necrosis caused by manganese (Mn) deficiency in Pinot Noir grapes in the Champagne Region of France