Definition of botrytis in English:



mass noun
  • A greyish powdery mould which causes a number of plant diseases and is deliberately cultivated (as noble rot) on the grapes used for certain wines.

    Genus Botrytis, subdivision Deuteromycotina (or Ascomycotina), in particular the grey mould B. cinerea

    • ‘Always lusciously sweet, these wines are made from grapes infected by botrytis, or ‘noble rot,’ which concentrates the sugars and lends aromas of honey and apricots.’
    • ‘Wines labelled as Sélection des Grains Nobles, however, nearly always contain a proportion of grapes affected by botrytis, or noble rot.’
    • ‘But the heat also was so dry that it inhibited in many German vineyards the growth of botrytis, the ‘noble rot’ that makes great dessert wines.’
    • ‘Eastern growers must also contend with humidity-loving black rot, botrytis, downy mildew, and phomopsis.’
    • ‘The main mechanism for the creation of Sauternes wine is a virulent but very temperamental fungus called botrytis cinerea, or botrytis to its friends.’
    • ‘Here the grapes are left on the vines until late fall with the hope they will become infected with botrytis, or as it is euphemistically called, ‘noble rot.’’
    • ‘Common onion diseases include damping off, botrytis leaf blight, downy mildew, and bacterial blight.’
    • ‘If left unchecked, botrytis will kill grapes and can be a big problem to vine growers.’
    • ‘The less common diseases are botrytis, anthracnose, and canker.’
    • ‘Should you see signs of botrytis on your plants, spray with copper fungicide, then remove and destroy all affected buds and leaves.’
    • ‘Grapes grown on Padthaway vineyard have a proven record for producing botrytis affected Riesling of outstanding quality; however, vintage conditions for such a wine have only occurred three times in the last nine years.’
    • ‘The botrytis mould contributes to the unique flavours of wines such as Sauternes from Bordeaux, Beerenauslese and Trockenbeerenauslese Riesling from Germany, and an array of late-harvest wines from other regions.’
    • ‘A main disease concern for the lily grower is botrytis, or gray mold, which can be seen on the leaves, Paul says.’
    • ‘On a side note, we also make some very good dry Riesling that has been infected with botrytis, giving them a powerful honeycomb texture and flavour, although, sadly, these tend to be situated at the upper end of the market.’
    • ‘Cotnari is a natural white dessert wine; pale, delicate and aromatic; the result of botrytis attacking the indigenous Grasa and Frincusa, perfumed with Tamaioasa and Feteasca.’
    • ‘If you have flowers that fail to open and are covered with a grayish-brown fuzzy mold, or if you have pink ‘water spots’ on the petals, you have botrytis.’
    • ‘Mature fruiting bodies of Hemitrichia serpula, Trichia botrytis, and Trichia favoginea were documented by field collections in the tree canopy.’
    • ‘The finest and most complex sweet white wines are produced from naturally sweet grapes, their sweetness concentrated by wind, ice, drying and botrytis.’
    • ‘When cutting back old peony stems, remove as much as possible to avoid infection by peony botrytis.’
    • ‘The botrytis is not heavy here, delivering a mix of honey, spice and pineapples on the nose.’


Modern Latin, from Greek botrus ‘cluster of grapes’.