Abstract
A three-year field study was conducted at the Pine Tree Branch Research Station near Colt, AR to evaluate methods of long-term trumpetcreeper (Campsis radicans) control. Tillage type (no-tillage or disking to a 6-inch depth) and herbicide treatment were evaluated using a strip-plot design with four replications. Tillage alone provided greater than 70% early-season trumpetcreeper control the first year following cultivation, but control steadily diminished over the following two years. A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acre or dicamba (Clarity 4 lb/gal) at 3 lb ae/acre produced greater than 80% trumpetcreeper control the following spring, but control was less than 70% by 2 years after application. An in-season application of glyphosate at 0.75 lb/acre provided greater than 85% control of trumpetcreeper regardless of tillage. A fall application of 2,4-D (2,4-D LV-4 3.8 lb/gal) at either 1 or 2 lb ae/acre did not provide more than 60% trumpetcreeper control. None of the herbicide treatments resulted in soybean injury or yield reduction. This research demonstrates that trumpetcreeper can be managed in soybean with dicamba or glyphosate applied the fall prior to crop establishment, or by an in-season application of glyphosate at rates and timings currently being used for broad-spectrum weed control.
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Claims 11
Claim · model-written summary
Tillage alone gave over 70% early-season trumpetcreeper control in the first year, then control declined over the following two years.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Tillage alonee0
- Interactor
- trumpetcreeper
Campsis radicanse0weed - Outcome
- trumpetcreeper controle0
- Direction
- greater thane0
- Value
- greater than 70%e0
- Qualifier
- the first year following cultivatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage alone provided greater than 70% early-season trumpetcreeper control the first year following cultivation, but control steadily diminished over the following two years.”
t0“Soybean”
Claim · model-written summary
Control from tillage alone steadily diminished in the next two years.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Tillage alonee0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper controle0
- Direction
- diminishede0
- Qualifier
- over the following two yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage alone provided greater than 70% early-season trumpetcreeper control the first year following cultivation, but control steadily diminished over the following two years.”
t0“Soybean”
Claim · model-written summary
Fall glyphosate at 1.5 lb ae/acre gave over 80% trumpetcreeper control the next spring.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acree0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper controle0
- Direction
- greater thane0
- Value
- greater than 80%e0
- Qualifier
- the following springe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acre or dicamba (Clarity 4 lb/gal) at 3 lb ae/acre produced greater than 80% trumpetcreeper control the following spring, but control was less than 70% by 2 years after application.”
t0“Soybean”
Claim · model-written summary
Fall dicamba at 3 lb ae/acre gave over 80% trumpetcreeper control the next spring.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- dicamba (Clarity 4 lb/gal) at 3 lb ae/acree0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper controle0
- Direction
- greater thane0
- Value
- greater than 80%e0
- Qualifier
- the following springe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acre or dicamba (Clarity 4 lb/gal) at 3 lb ae/acre produced greater than 80% trumpetcreeper control the following spring, but control was less than 70% by 2 years after application.”
t0“Soybean”
Claim · model-written summary
Control from fall glyphosate was below 70% two years after application.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acree0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper controle0
- Direction
- less thane0
- Value
- less than 70%e0
- Qualifier
- by 2 years after applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acre or dicamba (Clarity 4 lb/gal) at 3 lb ae/acre produced greater than 80% trumpetcreeper control the following spring, but control was less than 70% by 2 years after application.”
t0“Soybean”
Claim · model-written summary
Control from fall dicamba was below 70% two years after application.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- dicamba (Clarity 4 lb/gal) at 3 lb ae/acree0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper controle0
- Direction
- less thane0
- Value
- less than 70%e0
- Qualifier
- by 2 years after applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fall application of glyphosate (Roundup Ultra 3 lb/gal) at 1.5 lb ae/acre or dicamba (Clarity 4 lb/gal) at 3 lb ae/acre produced greater than 80% trumpetcreeper control the following spring, but control was less than 70% by 2 years after application.”
t0“Soybean”
Claim · model-written summary
In-season glyphosate at 0.75 lb/acre gave over 85% trumpetcreeper control regardless of tillage.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- An in-season application of glyphosate at 0.75 lb/acree0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- control of trumpetcreepere0
- Direction
- greater thane0
- Value
- greater than 85%e0
- Qualifier
- regardless of tillagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An in-season application of glyphosate at 0.75 lb/acre provided greater than 85% control of trumpetcreeper regardless of tillage.”
t0“Soybean”
Claim · model-written summary
Fall 2,4-D at 1 lb ae/acre gave no more than 60% trumpetcreeper control.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 2,4-D (2,4-D LV-4 3.8 lb/gal) at either 1 or 2 lb ae/acree0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper controle0
- Direction
- did not provide more thane0
- Value
- 60%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A fall application of 2,4-D (2,4-D LV-4 3.8 lb/gal) at either 1 or 2 lb ae/acre did not provide more than 60% trumpetcreeper control.”
t0“Soybean”
Claim · model-written summary
No herbicide treatment injured soybean.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- herbicide treatmentse0
- Interactor
- trumpetcreeperCampsis radicanse1weed
- Outcome
- soybean injurye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the herbicide treatments resulted in soybean injury or yield reduction.”
t0“Soybean”
e1“trumpetcreeper can be managed in soybean”
Claim · model-written summary
No herbicide treatment reduced soybean yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- herbicide treatmentse0
- Interactor
- trumpetcreeperCampsis radicanse1weed
- Outcome
- yield reductione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the herbicide treatments resulted in soybean injury or yield reduction.”
t0“Soybean”
e1“trumpetcreeper can be managed in soybean”
Claim · model-written summary
The authors conclude that fall dicamba can manage trumpetcreeper in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- dicambae0
- Interactor
- trumpetcreeperCampsis radicanse0weed
- Outcome
- trumpetcreeper can be managede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“trumpetcreeper can be managed in soybean with dicamba or glyphosate applied the fall prior to crop establishment, or by an in-season application of glyphosate at rates and timings currently being used for broad-spectrum weed control.”
The same questions in other papers
glyphosate · Campsis radicans · Glycine max (soybean)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
tillage · Campsis radicans · Glycine max (soybean)Positive and negative results
1 in the opposite direction
- no effect
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.