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| Publication Type:
| Refereed |
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| Author(s): | Masters, Robert A.;
Nissen, Scott J.;
Gaussoin, Roch E.;
Beran, Daniel D.;
Stougaard, Robert N. |
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| Author Affiliation: | Rangeland Sci., U.S. Dep. Agric., Agric. Res. Serv;, Asst. Prof., Dep. Agron., Univ. Nebraska, Lincoln, NE 68583, Asst. Prof, Dep. Hortic., Univ. Nebraska, Lincoln, NE 68583, Res. Asst., and Asst. Prof, Dep. Agron., Univ. Nebraska, Lincoln, NE 68583. Current address of S. J. Nissen: Dep. Plant Pathol. Weed Sci., Colorado State Univ., Ft. Collins 80523 and R. N. Stougaard: Northwest. Agric. Res. Cent., Kalispell, MT 59901 |
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| Title: | Imidazolinone herbicides improve restoration of great plains grasslands |
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| Source: | Weed Technology. Vol. 10, No. 2, April-June 1996, p. 392-403. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America. |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Imidazolinone herbicides; Imazapyr; Imazethapyr; Growth regulators; Restoration; Prairie restoration; Herbicides; Establishment; Grasslands; Cool season turfgrasses; Warm season turfgrasses; Euphorbia esula; Wildflowers; Weeds
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| Abstract/Contents: | "The productivity and native species diversity of Great Plains grasslands have been substantially reduced by past management that facilitated the establishment of invasive exotic weeds and displacement of native species. Management strategies are needed to rapidly restore the productive capacity and biological diversity of these degraded grasslands. Critically important phases of the grasslands restoration process are the reintroduction and establishment of native species. Weed interference is the primary constraint to successful establishment of native plants. The goal of our research is to develop strategies that use multiple technologies, including herbicides, to expedite grassland revegetation with native grasses and forbs. Imidazolinone herbicides (AC 263, 333, imazapyr, and imazethapyr) were used successfully to improve establishment of native perennial grasses (big bluestem, switchgrass, little bluestem) and selected forbs (blackeyed-susan, purple prairieclover, Illinois bundleflower, trailing crownvetch, and upright praire coneflower) on cropland and as components of a strategy to revegetate leafy spurge-infested rangeland with native tallgrasses. Imazethapyr at 70 or 110 g ai/ha applied at planting resulted in stands of big blustem and little blestem that were similar or superior to stands established where atrazine was applied. Seedling grasses were susceptible to imazapyr at two or three study sites. Imazapyr at 560 g ai/ha plus sulfometuron at 100 g ai/ha applied in fall was the optimum treatment for suppression of leafy spurge and exotic cool-season grasses and establishment of big bluestem and switchgrass on degraded rangland sites. Establishment of selected forbs was improved by PRE treatment with AC 263, 222 or imazethapyr at 70 g ai/ha. This research provides evidence that the midazolnone herbicides can be important components of integrated weed management strategies designed to reverse deterioration of grasslands by reestablishing native species, improving grassland productivity, and decreasing the prevalence of exotic weeds." |
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| Language: | English |
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| References: | 22 |
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| See Also: | Other items relating to: FLOWERS |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Masters, R. A., S. J. Nissen, R. E. Gaussoin, D. D. Beran, and R. N. Stougaard. 1996. Imidazolinone herbicides improve restoration of great plains grasslands. Weed Technol. 10(2):p. 392-403. |
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