Influence of herbicide applications and common pasture weeds on total forage yield and nutritive values in tall fescue pastures and hayfields in Missouri

Payne, Kristin K.

doi:10.32469/10355/10130

Cited by 2 publications

(3 citation statements)

References 36 publications

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“…However, it is important to note that pure samples of tall fescue were higher in CP than either weed species in October (Table 7). As common ragweed and tall ironweed reach maturity, the CP declines (Bosworth et al 1985(Bosworth et al , 1980Green and Martin 1998;Payne et al 2008). In this research, May-applied herbicide treatments provided poorer control of common ragweed and tall ironweed and lower CP in October.…”

Section: Time Of Treatmentmentioning

confidence: 62%

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Impact of Herbicides and Application Timing on Weed Control, Yield, and Nutritive Value of Tall Fescue Pastures and Hayfields

Payne¹,

Sleugh²,

Bradley³

2010

Weed technol.

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Field experiments were conducted from 2007 through 2009 at four locations in Missouri to evaluate the effect of May and August herbicide applications on weed control, total biomass yield, and forage nutritive values. Experiments were conducted in established tall fescue pastures that contained natural infestations of common ragweed and tall ironweed. Treatments consisted of 2,4-D, metsulfuron, aminopyralid, 2,4-D + dicamba, 2,4-D + picloram, aminopyralid + 2,4-D, and 2,4-D + dicamba + metsulfuron. All herbicide treatments provided > 76% control of common ragweed 1 mo after treatment (MAT), except metsulfuron alone which provided ≤ 62% control. August applications provided greater reductions in common ragweed density than May applications the following spring. Few differences in tall ironweed density were observed, but metsulfuron-containing herbicides tended to provide the lowest reduction in tall ironweed stem density the following spring. Biomass yields were generally greater in nontreated compared to herbicide-treated plots. Crude protein (CP) concentration and relative feed value (RFV) were higher in nontreated compared with herbicide-treated biomass. Overall, the poorer nutritive values and lower biomass yields in the herbicide-treated compared with the nontreated biomass may be partially explained by the removal of common ragweed, tall ironweed, and legumes with the herbicide treatments. Pure samples of common ragweed and white clover were greater in nutritive values than pure samples of tall fescue at all June harvests. Results indicate that common ragweed offers nutritive values equivalent to or greater than tall fescue and white clover when harvested in June at the vegetative stage of growth and that the removal of common ragweed and tall ironweed with herbicide applications is not likely to improve forage nutritive values of the total harvested biomass of tall fescue pastures, at least by the season after treatment.

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Section: Time Of Treatmentmentioning

confidence: 62%

“…Metsulfuron provided less common ragweed control 1 MAT than all other herbicide treatments across application timings, locations, and years. Other authors have also reported poor control of common ragweed with metsulfuron (Anonymous 2007;Bradley and Kendig 2004;Green and Martin 1998;Payne et al 2008).…”

Section: Resultsmentioning

confidence: 99%

Impact of Herbicides and Application Timing on Weed Control, Yield, and Nutritive Value of Tall Fescue Pastures and Hayfields

Payne¹,

Sleugh²,

Bradley³

2010

Weed technol.

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“…Another consideration should be the effects of herbicidal control on the total yield and nutritive value of the biomass harvested. Generally, the total annual yield for herbicide‐treated biomass will be less than that of untreated biomass, as herbicide treatments generally remove a certain percentage of weeds from the total yield (11). Additionally, dense infestations of weeds at the vegetative stage of growth in the spring may offer a nutrient concentration similar to or greater than forage grasses like tall fescue (2,11).…”

Section: Introductionmentioning

confidence: 99%

Herbicidal Control of Tall Goldenrod in Tall Fescue Hayfields

Payne

Bradley

2010

Forage & Grazinglands

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The addition of several new herbicides labeled for use in pastures or hayfields has led many growers to question their options for weed management. In addition, little is known about the effects of common pasture weeds on total biomass yield or nutritive value in a pasture or hayfield setting. Therefore, field experiments were conducted to evaluate the effect of selected herbicide treatments on tall goldenrod [(Solidago canadensis subsp. altissima (L.)] control and total forage biomass and nutritive values in mixed tall fescue [Lolium arundinacea (Schreb.) S.J. Darbyshire] and legume hayfields. Aminopyralid and aminopyralid plus 2,4‐D amine was least effective in controlling tall goldenrod one year after treatment (YAT). Total biomass yields were generally lower in herbicide‐treated compared to untreated plots, likely due to the reduction in tall goldenrod and legume density with these treatments. Herbicide‐treated biomass yields decreased by an average of 12% 1YAT compared to the untreated control. Nutritive value was also greater in biomass harvested from untreated compared to herbicide‐treated forage 1YAT. Results from this study indicate that a variety of herbicide treatments will control tall goldenrod, but that tall goldenrod infestations will not likely decrease the overall yield or nutritive value of the harvested biomass in mixed tall fescue and legume hayfields.

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Influence of herbicide applications and common pasture weeds on total forage yield and nutritive values in tall fescue pastures and hayfields in Missouri

Cited by 2 publications

References 36 publications

Impact of Herbicides and Application Timing on Weed Control, Yield, and Nutritive Value of Tall Fescue Pastures and Hayfields

Impact of Herbicides and Application Timing on Weed Control, Yield, and Nutritive Value of Tall Fescue Pastures and Hayfields

Herbicidal Control of Tall Goldenrod in Tall Fescue Hayfields

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