biological control


Definition of biological control

1 : the reduction in numbers or elimination of pest organisms by interference with their ecology (as by the introduction of parasites or diseases)
2 : an agent used in biological control

Examples of biological control in a Sentence

She practices biological control in her gardening. She uses biological controls in her garden.

Recent Examples on the Web

Several species of parasitic wasps are under consideration as a method of biological control, though this strategy typically only becomes practical once an invasive species becomes established. Zach Montague, New York Times, "Lanternflies Eat Everything in Sight. The U.S. Is Looking Delicious.," 21 May 2018 But in both cases biological controls—where a natural enemy organism is introduced to counter the invader—turned out to be a useful tool, and the war between human and insect ended in stalemate. Connie Bruck, The New Yorker, "The Mail," 14 Mar. 2018 Efforts to control the plants using herbicides and biological controls such as weevils that eat only the target plant have limited success. Shannon Tompkins, Houston Chronicle, "Boaters key to slowing invasive species," 3 Mar. 2018 To Jentsch, the biological control is the lesser of two evils. Steven Strogatz, The New Yorker, "When Twenty-Six Thousand Stinkbugs Invade Your Home," 8 Aug. 2011 One biological control is beneficial nematodes, which sort of look like skinny worms. Jo Ellen Meyers Sharp, Indianapolis Star, "Raccoon damage may signal grub problem," 8 Dec. 2017 If a lot of redhumped caterpillars have been parasitized, this biological control alone may be all that is needed to rid the tree of these pesky insects. Debbie Arrington, sacbee, "Backyard horror story: Attack of the redhumped caterpillars," 27 Oct. 2017 There’s been a huge shift from chemical use to biological controls and sustainable fertilizer. Michelle Z. Donahue, Smithsonian, "These Flowers Come Straight From the Farm to Your Door," 13 Feb. 2017

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

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First Known Use of biological control

1916, in the meaning defined at sense 1

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The first known use of biological control was in 1916

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biological control


Medical Definition of biological control

1 : the reduction in numbers or elimination of pest organisms by interference with their ecology (as by the introduction of parasites or diseases)
2 : an agent (such as pyrethrum) used in biological control

More from Merriam-Webster on biological control Encyclopedia article about biological control

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having no equal

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