Abstract
Abstract Purple nutsedge is a troublesome weed in tomato grown in plasticulture systems. Field trials were conducted in the fall of 2017 and spring of 2018 at Balm, FL, to evaluate multiple herbicide programs applied pretransplanting (pre-T), post-transplanting (post-T), and pre-T followed by (fb) post-T for purple nutsedge control in plasticulture tomato. Pre-T treatment of sulfentrazone or S -metolachlor alone were ineffective and did not decrease purple nutsedge density compared with the nontreated control. Post-T application of halosulfuron did not reduce purple nutsedge density at 12 wk after initial treatment (WAIT) in fall 2017 but reduced the purple nutsedge density at 17 WAIT in both seasons. Pre-T sulfentrazone or S -metolachlor application fb halosulfuron applied post-T were the most effective treatments and consistently reduced purple nutsedge population in both seasons. Herbicide treatments did not injure or reduce tomato height or yield. Overall, these results suggest sequential herbicide programs, including pre-T application of sulfentrazone or S -metolachlor fb post-T application of halosulfuron generally resulted in greater purple nutsedge control compared with pre-T or post-T application only. Halosulfuron applied post-T is critical to provide season-long purple nutsedge control in plasticulture tomato.
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Claims 9
Claim · model-written summary
Pretransplant sulfentrazone did not reduce purple nutsedge density relative to untreated plots.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- sulfentrazonee0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge densitye0
- Direction
- did not decreasee0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-T treatment of sulfentrazone or S -metolachlor alone were ineffective and did not decrease purple nutsedge density compared with the nontreated control”
t0“tomato”
Claim · model-written summary
Pretransplant S-metolachlor did not reduce purple nutsedge density.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- S -metolachlore0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge densitye0
- Direction
- did not decreasee0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-T treatment of sulfentrazone or S -metolachlor alone were ineffective and did not decrease purple nutsedge density compared with the nontreated control”
t0“tomato”
Claim · model-written summary
Posttransplant halosulfuron did not reduce nutsedge density at 12 weeks in fall 2017.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Post-T application of halosulfurone0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge densitye0
- Direction
- did not reducee0
- Qualifier
- 12 wk after initial treatment (WAIT) in fall 2017e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post-T application of halosulfuron did not reduce purple nutsedge density at 12 wk after initial treatment (WAIT) in fall 2017”
t0“tomato”
Claim · model-written summary
Posttransplant halosulfuron reduced nutsedge density at 17 weeks in both seasons.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- halosulfurone1
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge densitye0
- Direction
- reducede0
- Qualifier
- 17 WAIT in both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the purple nutsedge density at 17 WAIT in both seasons”
t0“tomato”
e1“Post-T application of halosulfuron”
Claim · model-written summary
Pretransplant sulfentrazone followed by posttransplant halosulfuron reduced nutsedge populations in both seasons.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Pre-T sulfentrazonee0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge populatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-T sulfentrazone or S -metolachlor application fb halosulfuron applied post-T were the most effective treatments and consistently reduced purple nutsedge population in both seasons”
t0“tomato”
Claim · model-written summary
Pretransplant S-metolachlor followed by posttransplant halosulfuron reduced nutsedge populations in both seasons.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- S -metolachlor application fb halosulfuron applied post-Te0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge populatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-T sulfentrazone or S -metolachlor application fb halosulfuron applied post-T were the most effective treatments and consistently reduced purple nutsedge population in both seasons”
t0“tomato”
Claim · model-written summary
Herbicide treatments did not injure tomato or reduce its height or yield.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Herbicide treatmentse0
- Outcome
- tomato height or yielde0
- Direction
- did not injure or reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide treatments did not injure or reduce tomato height or yield”
Claim · model-written summary
Sequential herbicide programs generally improved nutsedge control over single-timing applications.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- sequential herbicide programse0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge controle0
- Direction
- greatere0
- Comparator
- pre-T or post-T application onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sequential herbicide programs, including pre-T application of sulfentrazone or S -metolachlor fb post-T application of halosulfuron generally resulted in greater purple nutsedge control compared with pre-T or post-T application only”
t0“tomato”
Claim · model-written summary
The authors recommend posttransplant halosulfuron for season-long nutsedge control.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- purple nutsedgee0weed
- Outcome
- Halosulfuron applied post-T is critical to provide season-long purple nutsedge controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Halosulfuron applied post-T is critical to provide season-long purple nutsedge control in plasticulture tomato”
The same questions in other papers
sulfentrazone · pest · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- no effect
Halosulfuron-methyl · pest · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
herbicide · yield · Solanum lycopersicum (tomato)Positive and negative results
16 papers in the same direction as this paper · 28 in the opposite direction
- positive
- no effect
- no effect
41 papers more in this group
See all 45 papers →herbicide · control · Solanum lycopersicum (tomato)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →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.