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Since 1971, Oregon has used a flea beetle against tansy ragwort; 7 years later, the state said the biocontrol had cut infestations by 90%

Team Global · WorldNews · 2026-08-21

Since 1971, Oregon has used a flea beetle against tansy ragwort; 7 years later, the state said the biocontrol had cut infestations by 90%

Discover how Oregon's introduction of the Longitarsus jacobaeae flea beetle successfully reduced tansy ragwort infestations by 90%, protecting ranchers and the environment. Since 1971, Oregon has used a flea beetle against tansy ragwort; 7 years later, the state said the biocontrol had cut infestations by 90%

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