Abstract
Fomesafen is a protoporphyrinogen oxidase (PROTOX) inhibitor that has the potential to be used as an alternative mechanism of action for PRE nutsedge and broadleaf weed control in Florida production of small fruit and vegetables. Fumigation in the raised-bed plasticulture system may increase herbicide persistence. Fomesafen persistence could dissuade Florida growers from using the herbicide for fear of injury to subsequent susceptible crops. Field experiments were conducted in Balm, FL, in 2015 and 2016 to investigate the effect of fumigation on fomesafen dissipation, eggplant tolerance, and purple nutsedge control. Treatments included fomesafen at 0.42 kg ai ha −1 , S -metolachlor at 1.06 kg ai ha −1 , and a nontreated control in either a fumigated bed injected with a combination of 39% 1,3-dichloropropene and 59.6% chloropicrin at 336 kg ha −1 or no fumigant. Fomesafen concentration in the soil decreased by 83% and 96% from application to harvest in 2015 and 2016, respectively. Fumigation did not affect fomesafen dissipation in either year. At 2 wk after transplant (WATr), fomesafen caused 14% eggplant injury. Injury decreased to less than 5% at 6 WATr. Fomesafen and S -metolachlor treatments did not reduce eggplant height or yields compared with the nontreated control. Fumigation and fomesafen did not decrease purple nutsedge density; however, S -metolachlor applications resulted in a 48% reduction. Further research is needed to assess efficacy on broadleaf and grass weeds.
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Claims 10
Claim · model-written summary
Soil fomesafen concentration declined 83% from application to harvest in 2015.
- Taxon
- Eggplant
Solanum melongenat0 - Outcome
- Fomesafen concentration in the soile0
- Direction
- decreasede0
- Value
- 83%e0
- Qualifier
- 2015e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“Fomesafen concentration in the soil decreased by 83% and 96% from application to harvest in 2015 and 2016, respectively”
Claim · model-written summary
Soil fomesafen concentration declined 96% from application to harvest in 2016.
- Taxon
- EggplantSolanum melongenat0
- Outcome
- Fomesafen concentration in the soile0
- Direction
- decreasede0
- Value
- 96%e0
- Qualifier
- 2016e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“Fomesafen concentration in the soil decreased by 83% and 96% from application to harvest in 2015 and 2016, respectively”
Claim · model-written summary
Fumigation did not affect fomesafen dissipation in either year.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- Fumigatione0
- Outcome
- fomesafen dissipatione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“Fumigation did not affect fomesafen dissipation in either year”
Claim · model-written summary
Fomesafen caused 14% eggplant injury two weeks after transplant.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- fomesafene0
- Outcome
- eggplant injurye0
- Direction
- causede0
- Value
- 14%e0
- Qualifier
- 2 wk after transplant (WATr)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 2 wk after transplant (WATr), fomesafen caused 14% eggplant injury”
Claim · model-written summary
Eggplant injury fell below 5% at six weeks after transplant.
- Taxon
- EggplantSolanum melongenat0
- Outcome
- Injurye0
- Direction
- decreasede0
- Value
- less than 5%e0
- Qualifier
- 6 WATre0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“Injury decreased to less than 5% at 6 WATr”
Claim · model-written summary
Fomesafen did not reduce eggplant height or yield versus untreated control.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- Fomesafene0
- Outcome
- eggplant height or yieldse0
- Direction
- did not reducee0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fomesafen and S -metolachlor treatments did not reduce eggplant height or yields compared with the nontreated control”
Claim · model-written summary
S-metolachlor did not reduce eggplant height or yield versus untreated control.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- S -metolachlore0
- Outcome
- eggplant height or yieldse0
- Direction
- did not reducee0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fomesafen and S -metolachlor treatments did not reduce eggplant height or yields compared with the nontreated control”
Claim · model-written summary
Fumigation did not decrease purple nutsedge density.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- Fumigatione0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge densitye0
- Direction
- did not decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“Fumigation and fomesafen did not decrease purple nutsedge density”
Claim · model-written summary
Fomesafen did not decrease purple nutsedge density.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- fomesafene0
- Interactor
- purple nutsedgee0weed
- Outcome
- purple nutsedge densitye0
- Direction
- did not decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“Fumigation and fomesafen did not decrease purple nutsedge density”
Claim · model-written summary
S-metolachlor reduced purple nutsedge density by 48%.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- S -metolachlore0
- Interactor
- purple nutsedgee1weed
- Outcome
- purple nutsedge densitye1
- Direction
- reductione0
- Value
- 48%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Eggplant”
e0“S -metolachlor applications resulted in a 48% reduction”
e1“purple nutsedge density”
The same questions in other papers
fomesafen · crop injury · Solanum melongena (eggplant)Positive and negative results
1 in the opposite direction
- positive
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.