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RANGELAND WEED
In 1946, imported beetles were released against toxic St. Johnswort in northern California; by 1957, the weed had fallen to less than 1% of its former abundanceBy the 1940s, European Klamathweed had established itself as a major rangeland threat in California. To combat this invasive species, leaf ...- In 1988, USDA scientists released just 88 flea beetles in North Dakota; their descendants multiplied into hundreds of millions across North AmericaIn North Dakota, a targeted release of flea beetles marked the beginning of a successful biological control initiative. These beetles flour...
- Rare yellow flower unseen on California public land for 68 years resurfaces after cattle clear invasive weedsA rare yellow flower, unseen for 68 years, has reappeared on public land. Botanists discovered the caper-fruited Tropidocarpum in Californi...
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