Variable impacts of imazapic rate on downy brome and seeded species in two rangeland communities

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This study investigated downy brome and seeded species responses to variable rates of imazapic in two plant communities (salt desert shrub and Wyoming big sagebrush). Overall, imazapic was useful for helping establish desirable perennial species, but unless downy brome is reduced below a critical threshold, favorable precipitation can return sites to pretreatment levels within two years.

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