Abstract
incognita) is a major pest of sweet potato, and nematicides are needed to manage this nematode. The objectives of this study were to assess the efficacy of fluazaindolizine, a new non-fumigant nematicide, in comparison with the fumigant nematicide 1,3-dichloropropene (1,3-D) and non-fumigant nematicides fluopyram and oxamyl for (1) SRKN management, (2) impacts on free-living nematodes, and (3) sweet potato yield in field trials. Among all nematicides, 1,3-D at 84 kg/ha most consistently (2 of 3 years) managed SRKN soil populations and improved yield. Fluazaindolizine at 2.24 kg/ha and fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/ha managed SRKN populations and improved yield in 1 of 3 years, whereas fluazaindolizine alone at 1.12 kg/ha only decreased SRKN populations. Fluopyram at 238 g/ha did not affect SRKN or yield. Nematicide application also had non-target effects on free-living nematodes with 1,3-D reducing abundances relative to untreated most frequently (2018 and 2020), but other nematicides also reducing free-living nematode abundances in 2020. In summary, 1,3-D is the most consistent option for SRKN control on sweet potato, but fluazaindolizine, oxamyl or combinations of the two products can also be effective.
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Claims 13
Claim · model-written summary
1,3-D at 84 kg/ha managed SRKN soil populations in two of three years.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- 1,3-D at 84 kg/hae0
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitat0pest - Outcome
- SRKN soil populationse0
- Direction
- managede0
- Value
- 2 of 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“1,3-D at 84 kg/ha most consistently (2 of 3 years) managed SRKN soil populations and improved yield”
t0“Meloidogyne incognita Management Using Fumigant and Non-fumigant Nematicides on Sweet Potato”
Claim · model-written summary
1,3-D at 84 kg/ha improved sweet potato yield in two of three years.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- 1,3-D at 84 kg/hae0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- yielde0
- Direction
- improvede0
- Value
- 2 of 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1,3-D at 84 kg/ha most consistently (2 of 3 years) managed SRKN soil populations and improved yield”
t0“Meloidogyne incognita Management Using Fumigant and Non-fumigant Nematicides on Sweet Potato”
Claim · model-written summary
Fluazaindolizine at 2.24 kg/ha managed SRKN populations in one of three years.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- Fluazaindolizine at 2.24 kg/hae0
- Outcome
- SRKN populationse0
- Direction
- managede0
- Value
- 1 of 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluazaindolizine at 2.24 kg/ha and fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/ha managed SRKN populations and improved yield in 1 of 3 years”
t0“Sweet Potato”
Claim · model-written summary
Fluazaindolizine at 2.24 kg/ha improved yield in one of three years.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- Fluazaindolizine at 2.24 kg/hae0
- Outcome
- yielde0
- Direction
- improvede0
- Value
- 1 of 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluazaindolizine at 2.24 kg/ha and fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/ha managed SRKN populations and improved yield in 1 of 3 years”
t0“Sweet Potato”
Claim · model-written summary
Fluazindolizine plus oxamyl managed SRKN populations in one of three years.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/hae0
- Outcome
- SRKN populationse0
- Direction
- managede0
- Value
- 1 of 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/ha managed SRKN populations and improved yield in 1 of 3 years”
t0“Sweet Potato”
Claim · model-written summary
Fluazindolizine plus oxamyl improved yield in one of three years.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/hae0
- Outcome
- yielde0
- Direction
- improvede0
- Value
- 1 of 3 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fluazindolizine at 1.12 kg/ha plus oxamyl at 2.14 kg/ha managed SRKN populations and improved yield in 1 of 3 years”
t0“Sweet Potato”
Claim · model-written summary
Fluazaindolizine alone at 1.12 kg/ha decreased SRKN populations.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- fluazaindolizine alone at 1.12 kg/hae0
- Outcome
- SRKN populationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fluazaindolizine alone at 1.12 kg/ha only decreased SRKN populations”
t0“Sweet Potato”
Claim · model-written summary
Fluopyram at 238 g/ha did not affect SRKN populations.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- Fluopyram at 238 g/hae0
- Outcome
- SRKNe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluopyram at 238 g/ha did not affect SRKN or yield”
t0“Sweet Potato”
Claim · model-written summary
Fluopyram at 238 g/ha did not affect yield.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- Fluopyram at 238 g/hae0
- Outcome
- yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluopyram at 238 g/ha did not affect SRKN or yield”
t0“Sweet Potato”
Claim · model-written summary
1,3-D reduced free-living nematode abundance relative to untreated plots in 2018 and 2020.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- 1,3-De0
- Outcome
- abundancese0
- Direction
- reducinge0
- Qualifier
- 2018 and 2020e0
- Comparator
- untreatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1,3-D reducing abundances relative to untreated most frequently (2018 and 2020)”
t0“Sweet Potato”
Claim · model-written summary
Other nematicides also reduced free-living nematode abundance in 2020.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- other nematicidese0
- Outcome
- free-living nematode abundancese0
- Direction
- reducinge0
- Qualifier
- 2020e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“other nematicides also reducing free-living nematode abundances in 2020”
t0“Sweet Potato”
Claim · model-written summary
The authors identify 1,3-D as the most consistent option for SRKN control on sweet potato.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- 1,3-De0
- Outcome
- SRKN controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1,3-D is the most consistent option for SRKN control on sweet potato”
Claim · model-written summary
The authors identify fluazaindolizine, oxamyl and their combinations as potentially effective SRKN controls.
- Taxon
- Sweet PotatoIpomoea batatast0
- Outcome
- effectivee0
- Qualifier
- fluazaindolizine, oxamyl or combinations of the two productse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fluazaindolizine, oxamyl or combinations of the two products can also be effective”
t0“Sweet Potato”
The same questions in other papers
fluazaindolizine · yield · Ipomoea batatas (sweet potato)Results differ
1 in the opposite direction
- no effect
fluopyram · yield · Ipomoea batatas (sweet potato)Results agree
1 paper in the same direction as this paper
- no effect
oxamyl · yield · Ipomoea batatas (sweet potato)Results agree
1 paper in the same direction as this paper
- 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.