当蜂群衰竭失调病首次出现时，从农学家到公众都认为人类往农田中喷洒的大量化学物质是导致此病的罪魁祸首。

When CCD first hit, many people, from agronomists to the public, assumed that our slathering of chemicals on agricultural fields was to blame.

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在农田中，褐条病难以鉴定。

Brown streak can be hard to identify in the field.

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