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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Boyles, M. C.;
Fenderson, J. M.;
Bowe, S. J. |
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| Author Affiliation: | Sandoz Crop Protection |
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| Title: | Update: Summary of Annual Weed Control in Established Alfalfa with Prodiamine Herbicide. |
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| Source: | Southern Weed Science Society Proceedings. Vol. 40, January 1987, p. 106. |
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| Publishing Information: | Nashville, TN: Southern Weed Science Society. |
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| Keywords: | TIC Keywords: Medicago sativa; Prodiamine; Digitaria sanguinalis; Setaria glauca; Setaria viridis
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| Abstract/Contents: | "Prodiamine has been evaluated since 1984 for annual grass control in established alfalfa. Results of studies conducted in the central plains and western U.S. indicate that prodiamine grass control. Prodiamine was applied during the winter and early spring to dormant and semi-dormant stands of established alfalfa. All treatments were surface applied and activated by rainfall of irrigation. Plots were established in a randomized complete block design with 3 or 4 replications. Prodiamine was applied at 0.25 - 4.0 lns./A to established stands of alfalfa (greater than 1 year old). Prodiamine treatments resulted in no injury at any rate tested. Effective annual grass control has been noted at 0.38 lbs/A, but effective full season control required 0.5 - 1.0 lb/A depending on weed species. Effective full season crabgrass (Digitaria sanguinalis) control has been achieved at 0.5 lbs/A. Yellow foxtail (Setaria lutescens) was more difficult to control and required 0.75 - 1.0 lbs/A for acceptable (85%) full season foxtail control. Excellent full season control (90%) of green foxtail (Setaria viridis), barnyardgrass (Echinchloa crusgalli), cupgrass (Erichloa spp.) and sprangletop (Leptochloa fascicularis) was accomplished when 0.75 lbs/A of prodiamine was applied. Control of broadleaf weeds has been noted. Prodiamine at 0.5 lbs./A or greater has provided full season (99%) pigweed control. Following season evaluations of alfalfa indicate that prodiamine's residual activity will provide fall and second season annual grass and broadleaf control. Prodiamine at 0.5 - 1.5 lbs/A has provided chickweed (67-88%) and shepherdspurse (49-83%) control the following fall. Prodiamine at 0.5 - 1.5 lbs/A has given fair to excellent second season crabgrass control. Crabgrass control prior to August 1 of the second growing season ranged from 65-96%. Control of crabgrass following August 1 resulted in crabgrass control ranged from 47-81% at 0.5 - 1.5 lbs/A respectively. Crude protein analysis and forage yields were evaluated from mid and late summer alfalfa harvests. Prodiamine applied at 0.75 lbs/A increased crude protein 4.2% versus the untreated check. Correspondingly, prodiamine at 0.75 lbs/A increased alfalfa dry matter production by 579 lbs/A. Prodiamine's effectiveness for increasing alfalfa forage production and quality make it an excellent herbicide candidate for established alfalfa." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Boyles, M. C., J. M. Fenderson, and S. J. Bowe. 1987. Update: Summary of Annual Weed Control in Established Alfalfa with Prodiamine Herbicide.. South. Weed Sci. Soc. Proc. 40:p. 106. |
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MSU catalog number: SB 611 .S6 |
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