black spot

noun

: any of several bacterial or fungal diseases of plants characterized by black spots or blotches especially on the leaves

chiefly British : a dangerous or troublesome place or area

… Wisteria Lane has always been a major accident black spot.

Jane Simon

Example Sentences

Recent Examples on the Web Clean up diseased or infested plants: If any of your plants had a serious problem, such as apple scab on crab apple trees or black spot on rose bushes, clean them up to reduce the risk that the problem will return next year.

Beth Botts, Chicago Tribune, 20 Nov. 2022 But inflation has yet to go down, and remains a massive black spot overshadowing other achievements.

Quartz, 4 Nov. 2022 My favorites in this line are filtered closeups of the sun looking like a pink balloon, each one bearing a tiny black spot: a transit of Venus.

Peter Schjeldahl, The New Yorker, 3 Oct. 2022 How long will the ground remain infested with black spot before it is healed?

Neil Sperry, San Antonio Express-News, 28 May 2021 That little black spot at the top left is the shadow of Venus, passing by in a rare cosmic alignment that won’t occur again until 2117.

Marina Koren, The Atlantic, 11 Aug. 2022 Pretty much all of them have black spot and most of the leaves have dropped.

oregonlive, 2 July 2022 This application will greatly reduce the future incidence and severity of the three main fungal diseases that afflict roses — powdery mildew, rust and black spot.

Earl Nickel, San Francisco Chronicle, 1 Apr. 2022 The injection site soon developed a nasty black spot.

Jennifer Ouellette, Ars Technica, 2 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'black spot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.