scale insect

noun

: any of numerous small prolific homopterous insects (superfamily Coccoidea) that have winged males, wingless scale-covered females attached to the host plant, and young that suck the juices of plants and some of which are serious pests

Examples of scale insect in a Sentence

Recent Examples on the Web
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The same early detection applies to pests such as aphids, bark beetles, and scale insects. Megan Hughes, Better Homes & Gardens, 5 Aug. 2025 Mealy bugs and scale insects are major foliage pests; control with a natural spray when noted. 77. Tom MacCubbin, The Orlando Sentinel, 28 June 2025 Tropical hibiscus can be affected by a variety of pests, including aphids, scale insects, and spider mites. Andy Wilcox, Better Homes & Gardens, 13 July 2025 Stay alert for mites and scale insects to wash off as needed. Tom MacCubbin, The Orlando Sentinel, 28 June 2025 See All Example Sentences for scale insect

Word History

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of scale insect was in 1840

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Cite this Entry

“Scale insect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/scale%20insect. Accessed 21 Aug. 2025.

Kids Definition

scale insect

noun
: any of numerous small insects related to aphids and including many destructive plant pests in which the males have wings, the females are scale-covered and are often permanently attached to a host plant, and the young suck the juices of plants

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