• The population of the spruce budworm, the warbler's favorite prey in North America, has been dropping.

    北美喜欢猎物云杉芽虫数量一直在下降。

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  • A larva of several tortricid moths, especially the spruce budworm, that devours plant buds.

    一些卷叶幼虫云杉芽虫,吞食植物幼芽

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  • In Maine Daniel Jennings of the u. s. forest service has enlisted spiders in the war against the spruce budworm the northeast's most devastating enemy of spruce and fir forests.

    缅因州美国林业局丹尼尔·詹宁征募蜘蛛来与云杉芽卷蛾——东北部云杉冷杉林凶恶的敌人——作战

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  • The moths also look the same at first glance, and Miller says this drawer holds nothing but a single species of spruce budworm, an infamous pest of eastern forests in North America.

    一眼瞥去这些长得完全一样Miller这个抽屉内仅有云杉蚜虫——北美洲东面树林内一类不知名害虫

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  • In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm , an economically significant pest.

    例如NB森林里过去25年里多种杀虫剂喷洒控制云杉蚜虫,一种经济上严重病害虫

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  • In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm , an economically significant pest.

    例如NB森林里过去25年里多种杀虫剂喷洒控制云杉蚜虫,一种经济上严重病害虫

    youdao

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