2026年11月9日 6:37 ET 发布 · 更新于 5 天前 · 1 个来源
How the US was left exposed to the flesh-eating screwworm, years into the outbreak
reuters
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原始报道
INFERY
For decades, planes dropped billions of factory-bred sterile flies to keep the flesh-eating New World screwworm out of North America’s cattle. That controls the pest because sterile males mate with wild females – whose eggs then fail to hatch.
原文