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TANSY RAGWORT

Since 1971, Oregon has used a flea beetle against tansy ragwort; 7 years later, the state said the biocontrol had cut infestations by 90%
In Oregon, a tiny flea beetle has emerged victorious in the battle against toxic tansy ragwort, a notorious invasive weed that has plagued ...
21 Aug, 2026, 06.50 PM IST

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