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单词	spruce budworm
释义	spruce budworm noun : a tortricid moth (Choristoneura fumiferana) whose larva feeds on evergreen trees (such as spruce and balsam fir) in the northern U.S. and Canada also : a related moth (C. occidentalis) of the northwestern U.S. and adjacent Canada Example Sentences Recent Examples on the Web Hundreds of thousands of acres of balsam fir trees north of Duluth have either died or are struggling to fight off a bloom of a pest called spruce budworm. Greg Stanley, Star Tribune, 26 June 2021 Ontario and Quebec are experiencing one of their most intense spruce budworm outbreaks in 40 years. Star Tribune, 22 Dec. 2020 But Minnesota is in the midst of a prolonged outbreak of spruce budworm, a pest and caterpillar that has killed more than 200,000 acres of fir and spruce trees in each of the last three years. Greg Stanley, Star Tribune, 14 Dec. 2020 One of the major uses of DDT was controlling insect outbreaks, like spruce budworm, in conifer forests across North America. Jason Daley, Smithsonian, 15 June 2019 Word History First Known Use 1883, in the meaning defined above
随便看	tactile hair tactilely tactiler tactilest tactilist tactilists tactilities tactility taction tactions tactism tactite tactless tactlesslier tactlessliest tactlessly tactlessness tactlessnesses tactometer tactor tactoreceptor tactosol tacts tactual tactualer

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