Grassland response to herbicides and seeding of native grasses 6 years post-treatment

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This study evaluated restoration efforts applied to grasslands dominated by an invasive plant, sulfur cinquefoil, 6 yr after treatments. Of the five herbicides evaluated, picloram continued to provide the best control of sulfur cinquefoil over 6 yr. Plots with picloram applied in the fall had greater native forb cover. Seeding resulted in a 20% decrease in exotic grass cover. Successful establishment of native perennial grasses was not apparent until 6 yr after seeding. Our study found integrating herbicide application and the addition of native grass seed to be an effective grassland restoration strategy, at least in the case where livestock are excluded.

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