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couluring (GB)
couler (F)
colare (I)
corrimiento (ES)

Term for defective or failed blossom or flower decay during or shortly after the vine bloom. Other names are tapping, leaving, trickling and, in extreme cases, passing through or trickling through. The causes for this are weather-related influences such as frost. hail and persistent rains as well chlorosis, A trickle can also be caused by pests like mites (Ruffled mites) and Rebenthripse. mushrooms how Red burner or Botrytis as well as various viral diseases like especially the one brushwood disease are caused. Sprinkling is also favored by excessive use in the vineyard nitrogen. copper. sulfur or phytohormones, All of this causes a weak one photosynthesis and poor carbohydrate supply in plant tissue and leads to bad fruit set,

Sprinkle - inflorescence of a grape

As a result, there can be a reduction in the normal amount or number of berries on the grape skeleton with extreme looseness of and with it too yield losses up to 80% and more come. A moderate trickle can be positive, as grape varieties with too compact, dichtbeerigen Grapes for bunch rot tend. A possible manifestation of the trickle is millerandage (French Millerandage) with abnormally many small, green and hard berries (shot corn berries) or very sweet berries that ripen later. Certain varieties respectively. Clones or documents are particularly susceptible to trickling and small berries. These are among others Cot, Grenache Noir ( Garnacha Tinta ) Merlot. Ortega and Muscat Ottonel,

Inflorescence: From Mussklsproz , CC BY-SA 3.0 , Link

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