powdery mildew

noun

1
: an ascomycetous fungus (family Erysiphaceae) producing abundant powdery conidia on the host
2
: a plant disease caused by a powdery mildew

Examples of powdery mildew in a Sentence

Recent Examples on the Web Given that Sonoma County vineyards are 99% sustainably certified, many of the sprays are organic or softer in nature, and are used to manage issues such as powdery mildew. Liz Thach, Forbes, 26 Sep. 2024 Other diseases that impact the cosmos from developing are stem canker, powdery mildew, and Botrytis blight. Katherine Owen, Southern Living, 8 Sep. 2024 Pests and Problems Fungal diseases, including anthracnose, powdery mildew, and phytophthora, can afflict bay leaf plants. Lauren David, Better Homes & Gardens, 28 July 2024 My favorite is ‘David’, a white, powdery mildew resistant variety that grows to about 4 feet with loads of slightly fragrant blooms. Dawn Pettinelli, Hartford Courant, 10 Aug. 2024 See all Example Sentences for powdery mildew 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'powdery mildew.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1889, in the meaning defined at sense 1

Time Traveler
The first known use of powdery mildew was in 1889

Dictionary Entries Near powdery mildew

Cite this Entry

“Powdery mildew.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/powdery%20mildew. Accessed 5 Oct. 2024.

Kids Definition

powdery mildew

noun
: a fungus that is a parasite and produces a large number of powdery spores on the host
also : a plant disease caused by such a fungus

More from Merriam-Webster on powdery mildew

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