African Buffelgrass a Threat to Arizona's Desert - Introduced from Africa into south Texas in the 1940’s and extensively in Sonora, Mexico since the 1960’s, buffelgrass has recently begun to spread vigorously in southern Arizona, invading even remote backcountry areas of national parks and wildlife refuges. Scientists at the U.S. Geological Survey are embarking on new research to provide resource managers the most cost-effective techniques for removing buffelgrass and restoring the desert’s native vegetation.
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