Definition of black spot in English:

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black spot


1British A place or area marked by a particular trouble or concern: an unemployment black spot an accident black spot
More example sentences
  • He called for motorists to be more considerate at many of the area's traffic black spots so jams were not made worse by drivers behaving badly.
  • They overspeed and overtake what they consider slow vehicles at any point, even at areas known as black spots.
  • This road has many accident black spots particularly around the Dromore west area.
2 [mass noun] A fungal or bacterial disease of plants, especially roses, producing black blotches on the leaves.
Example sentences
  • Many popular roses are also susceptible to three fungal diseases, whose names black spot, mildew, and rust are descriptive of their appearance on rose leaves.
  • A soaker hose waters the base of every plant, thereby minimizing black spot and mildew problems that often arise from wetting the leaves.
  • To prevent black spot from infecting new plants, spray with a synthetic chemical fungicide once every 10 days, starting in midspring.

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