growth regulator
noun
: any of various synthetic or naturally occurring plant substances (such as an auxin or gibberellin) that regulate growth
Examples of growth regulator in a Sentence
Recent Examples on the Web
Look for baits that contain an insect growth regulator (IGR), which affects their reproductive abilities.
—
Arricca Elin Sansone, Southern Living, 18 June 2025
New to the list: Blackberries and potatoes Blackberries were new to the list, having never been tested before by the US Department of Agriculture, while potatoes joined the rankings after being absent in recent years — mainly due to the use of a plant growth regulator called chlorpropham.
—Sandee Lamotte, CNN Money, 11 June 2025
John Deere also plans to release driverless tractors that can spray nut orchards with pesticides, growth regulators, and nutrients for the trees.
—Ben Kesslen, Quartz, 6 Jan. 2025
Sprayers are used to apply pesticides, growth regulators, and nutrients to ensure a healthy crop.
—Andrew J. Hawkins, The Verge, 6 Jan. 2025
The farming methods of today are a stark contrast as pesticides and growth regulators are used to override the instincts of nature.
—Anna Haines, Forbes, 28 Oct. 2024
One potential solution is plant growth regulators, of which one type could delay the early blooms.
—Evan Lasseter, ajc, 10 July 2023
Its dual-action formula contains both an insecticide and an insect growth regulator to effectively kill adult fleas and prevent their eggs from hatching.
—Amber Smith, Discover Magazine, 24 June 2023
This shampoo contains an insect growth regulator that prevents fleas from reproducing.
—Amber Smith, Discover Magazine, 17 Oct. 2022
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Arricca Elin Sansone, Southern Living, 18 June 2025
New to the list: Blackberries and potatoes Blackberries were new to the list, having never been tested before by the US Department of Agriculture, while potatoes joined the rankings after being absent in recent years — mainly due to the use of a plant growth regulator called chlorpropham.
—Sandee Lamotte, CNN Money, 11 June 2025
John Deere also plans to release driverless tractors that can spray nut orchards with pesticides, growth regulators, and nutrients for the trees.
—Ben Kesslen, Quartz, 6 Jan. 2025
Sprayers are used to apply pesticides, growth regulators, and nutrients to ensure a healthy crop.
—Andrew J. Hawkins, The Verge, 6 Jan. 2025
The farming methods of today are a stark contrast as pesticides and growth regulators are used to override the instincts of nature.
—Anna Haines, Forbes, 28 Oct. 2024
One potential solution is plant growth regulators, of which one type could delay the early blooms.
—Evan Lasseter, ajc, 10 July 2023
Its dual-action formula contains both an insecticide and an insect growth regulator to effectively kill adult fleas and prevent their eggs from hatching.
—Amber Smith, Discover Magazine, 24 June 2023
This shampoo contains an insect growth regulator that prevents fleas from reproducing.
—Amber Smith, Discover Magazine, 17 Oct. 2022
Cite this Entry
“Growth regulator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/growth%20regulator. Accessed 30 Jul. 2025.
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