Abstract
Field studies were conducted in 2002 and 2003 to determine the effects of herbicides applied below suggested use rates on weed management, yield, and estimated net return of peanut in both narrow and wide row-spacing regimes. In the single row-spacing regime study, diclosulam at 6 g/ha (1/4×) (1/4 labeled use rate) plus flumioxazin at 26 g/ha (1/4×) applied PRE followed by (fb) imazapic POST at 17, (1/4×), 35, (1/2×), or 70, (1×) g/ha was the lowest herbicide input that provided at least 80% control of sicklepod, yellow nutsedge, Florida beggarweed, and hairy indigo at 21 d after treatment (DAT). By 42 DAT, weed control was ≥ 80%, similar to herbicide treatments applied at labeled rates. In the twin row-spacing regime study at Jay, FL, and Citra, FL, in 2003, yellow nutsedge control was lowest (83 to 85%) from diclosulam applied at 1/4× in combination with flumioxazin at 1/4× PRE and flumioxazin at 1/4× or 52 g/ha (1/2×) PRE alone. All other herbicide treatments provided > 90% control. Diclosulam at 13 g/ha (1/2×) fb imazapic at 1/2× and flumioxazin at 1/4× fb imazapic at 1/2× was the lowest rate combination that provided > 80% control of sicklepod. Florida beggarweed control was > 90% with all rate combinations except diclosulam PRE alone, diclosulam at 1/4× PRE fb imazapic at 1/4× POST, and imazapic at 1/4× alone POST. Net return in the single-row spacing regime was highest for flumioxazin at 105 g/ha (1×) PRE alone, diclosulam at 1/4× applied with flumioxazin at 1/4× PRE alone or fb imazapic at 1× ($1,114, $1,094, and $990/ha, respectively). The twin row-spacing regime net return was highest with diclosulam PRE alone at 1/4, 1/2, or 26 g/ha (1×) ($2,063, $1,846, $1,734/ha, respectively). Diclosulam applied with flumioxazin at 1/2× fb imazapic at 1/2× was the lowest herbicide tank-mix input providing high net return at $1,162/ha.Nomenclature: Diclosulam, flumioxazin, imazapic, Florida beggarweed, Desmodium tortuosum (Sw.) DC., hairy indigo, Indigofera hirsuta Harvey, sicklepod, Senna obtusifolia (L.) H.S. Irwin & Barneby, yellow nutsedge, Cyperus esculentus L., peanut, Arachis hypogaea L. ‘C-99R’
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Claims 9
Claim · model-written summary
The low input diclosulam plus flumioxazin PRE followed by imazapic POST controlled four weeds at least 80% at 21 DAT.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- diclosulam at 6 g/ha (1/4×) (1/4 labeled use rate) plus flumioxazin at 26 g/ha (1/4×) applied PRE followed by (fb) imazapic POST at 17, (1/4×), 35, (1/2×), or 70, (1×) g/hae0
- Interactor
- sicklepode0
- Outcome
- control of sicklepod, yellow nutsedge, Florida beggarweed, and hairy indigoe0
- Direction
- at leaste0
- Value
- 80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diclosulam at 6 g/ha (1/4×) (1/4 labeled use rate) plus flumioxazin at 26 g/ha (1/4×) applied PRE followed by (fb) imazapic POST at 17, (1/4×), 35, (1/2×), or 70, (1×) g/ha was the lowest herbicide input that provided at least 80% control of sicklepod, yellow nutsedge, Florida beggarweed, and hairy indigo at 21 d after treatment (DAT)”
t0“peanut”
Claim · model-written summary
Weed control reached at least 80% by 42 DAT, similar to labeled rates.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- weed controle0
- Direction
- similare0
- Value
- ≥ 80%e0
- Comparator
- herbicide treatments applied at labeled ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By 42 DAT, weed control was ≥ 80%, similar to herbicide treatments applied at labeled rates.”
t0“peanut”
Claim · model-written summary
In twin rows, the specified reduced diclosulam and flumioxazin treatments had the lowest yellow nutsedge control of 83 to 85%.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- diclosulam applied at 1/4× in combination with flumioxazin at 1/4× PREe0
- Interactor
- yellow nutsedgee0
- Outcome
- yellow nutsedge controle0
- Direction
- loweste0
- Value
- 83 to 85%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yellow nutsedge control was lowest (83 to 85%) from diclosulam applied at 1/4× in combination with flumioxazin at 1/4× PRE and flumioxazin at 1/4× or 52 g/ha (1/2×) PRE alone”
t0“peanut”
Claim · model-written summary
Other herbicide treatments controlled yellow nutsedge by over 90%.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- controle0
- Value
- > 90%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All other herbicide treatments provided > 90% control.”
t0“peanut”
Claim · model-written summary
The lowest rate combinations yielding over 80% sicklepod control were diclosulam or flumioxazin followed by imazapic.
- Taxon
- peanutArachis hypogaeat0
- Interactor
- sicklepode0
- Outcome
- control of sicklepode0
- Direction
- loweste0
- Value
- > 80%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diclosulam at 13 g/ha (1/2×) fb imazapic at 1/2× and flumioxazin at 1/4× fb imazapic at 1/2× was the lowest rate combination that provided > 80% control of sicklepod.”
t0“peanut”
Claim · model-written summary
Most combinations controlled Florida beggarweed by over 90%, with three named exceptions.
- Taxon
- peanutArachis hypogaeat0
- Interactor
- Florida beggarweed
Desmodium tortuosume0 - Outcome
- Florida beggarweed controle0
- Value
- > 90%e0
- Qualifier
- except diclosulam PRE alone, diclosulam at 1/4× PRE fb imazapic at 1/4× POST, and imazapic at 1/4× alone POSTe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Florida beggarweed control was > 90% with all rate combinations except diclosulam PRE alone, diclosulam at 1/4× PRE fb imazapic at 1/4× POST, and imazapic at 1/4× alone POST.”
t0“peanut”
Claim · model-written summary
In single rows, flumioxazin PRE alone had the highest listed net return of $1,114/ha.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- flumioxazin at 105 g/ha (1×) PRE alonee0
- Outcome
- Net returne0
- Direction
- higheste0
- Value
- $1,114e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net return in the single-row spacing regime was highest for flumioxazin at 105 g/ha (1×) PRE alone, diclosulam at 1/4× applied with flumioxazin at 1/4× PRE alone or fb imazapic at 1× ($1,114, $1,094, and $990/ha, respectively).”
t0“peanut”
Claim · model-written summary
In twin rows, diclosulam PRE at one-quarter rate gave the highest listed net return of $2,063/ha.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- diclosulam PRE alone at 1/4e0
- Outcome
- net returne0
- Direction
- higheste0
- Value
- $2,063e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The twin row-spacing regime net return was highest with diclosulam PRE alone at 1/4, 1/2, or 26 g/ha (1×) ($2,063, $1,846, $1,734/ha, respectively).”
t0“peanut”
Claim · model-written summary
The lowest herbicide tank mix input with high net return gave $1,162/ha.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Diclosulam applied with flumioxazin at 1/2× fb imazapic at 1/2×e0
- Outcome
- net returne0
- Direction
- highe0
- Value
- $1,162/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diclosulam applied with flumioxazin at 1/2× fb imazapic at 1/2× was the lowest herbicide tank-mix input providing high net return at $1,162/ha.”
t0“peanut”
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