If Bordeaux does not have rain by 10 September, top consultant Jacques Boissenot may advise clients to pick at less than full phenolic maturity – causing a risk of greenness in the wines. Boissenot, who with his son Eric consults for 180 mainly left-bank properties including Latour, Lafite Rothschild, Mouton Rothschild, Margaux, Ducru-Beaucaillou, Leoville-las-Cases, Pichon Longueville and Pichon Comtesse, Leoville Barton, Gruaud Larose, Cos d'Estournel and Rauzan Segla, said conditions in July and August have been ‘desert-like’ with vines suffering from heat stress.