Black spot leaf disease

id: black-spot-leaf-disease-243-3791453
title: Black spot leaf disease
text: Black spot leaf disease is a physiological plant disorder that affects some grape varieties such as Concord. It is essentially a potassium deficiency that causes the leaves on a vine to turn purple and eventually black as chlorophyll is lost. For wine growers this lack of chlorophyll inhibits the vine's ability to transmit sugar to the grape, leaving the resulting grapes with a low brix count that may be less than ideal for wine making.
brand slug: wiki
category slug: encyclopedia
description: Disease of plants
original url: https://en.wikipedia.org/wiki/Black_spot_leaf_disease
date created:
date modified: 2024-04-18T11:48:42Z
main entity: {"identifier":"Q4922361","url":"https://www.wikidata.org/entity/Q4922361"}
image: {"content_url":"https://upload.wikimedia.org/wikipedia/commons/9/9c/Roos_sterroetdauw_%28Diplocarpon_rosae%29_bij_Z%C3%A9phirine_Drouin.jpg","width":1501,"height":1181}
fields total: 13
integrity: 15

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