In 1988, USDA scientists released flea beetles in North Dakota to fight a stubborn weed; their descendants spread across America and restored rangelands

North America Science Thu, 13 Aug 2026 17:53:45 GMT Moderate confidence — 73/100

That plant was leafy spurge, an aggressive Eurasian weed that had already spread across more than two million hectares of pasture and rangeland in 35 American states by

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That plant was leafy spurge, an aggressive Eurasian weed that had already spread across more than two million hectares of pasture and rangeland in 35 American states by

Sources: Times of India