Abstract
Aldicarb, ethoprop, and fenamiphos were evaluated for their efficacy in controlling various species of root-knot nematodes on flue-cured tobacco and for their residual activity, as determined through periodic sampling and bioassays of soil taken from field plots. Field experiments were conducted at five locations over 2 years with flue-cured tobacco. Soil in plots treated with nematicides were formed into high, wide beds before transplanting with 'Coker 371-Gold' or 'K 326' tobacco. Residual control of Meloidogyne spp. was greatest (P </= 0.05) with fenamiphos (in some cases up to 10 weeks, as measured in tomato bioassays of infested soil and root fragments). Suppression of nematode reproduction by ethoprop was short-lived, and numbers of second-stage juveniles + eggs and numbers of galls in bioassays sometimes surpassed those of untreated plots within 4 weeks after treatment. Aldicarb gave intermediate control over time as compared to the other compounds. Although nematicidal efficacy of all compounds varied with site and season, fenamiphos and aldicarb generally produced the highest yields.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Fenamiphos gave the greatest residual control of Meloidogyne spp. on tobacco, lasting up to 10 weeks in bioassays.
- Taxon
- tobacco
Nicotiana tabacumt0 - Treatment
- fenamiphose1
- Interactor
- Meloidogyne spp.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee1pest - Outcome
- Residual control of Meloidogyne spp.e1
- Direction
- greateste1
- Qualifier
- up to 10 weekse1
- Comparator
- the other compoundse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
t0“on tobacco”
e1“Residual control of Meloidogyne spp. was greatest (P </= 0.05) with fenamiphos (in some cases up to 10 weeks, as measured in tomato bioassays of infested soil and root fragments)”
e2“Aldicarb gave intermediate control over time as compared to the other compounds”
Claim · model-written summary
Ethoprop suppression of nematode reproduction on tobacco was short-lived.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- ethoprope1
- Outcome
- Suppression of nematode reproductione1
- Direction
- short-livede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on tobacco”
e1“Suppression of nematode reproduction by ethoprop was short-lived”
Claim · model-written summary
Ethoprop-treated plots sometimes had more second-stage juveniles, eggs and galls than untreated plots within 4 weeks after treatment.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- ethoprope2
- Outcome
- numbers of second-stage juveniles + eggs and numbers of gallse1
- Direction
- surpassede1
- Qualifier
- within 4 weeks after treatmente1
- Comparator
- untreated plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on tobacco”
e1“numbers of second-stage juveniles + eggs and numbers of galls in bioassays sometimes surpassed those of untreated plots within 4 weeks after treatment”
e2“Suppression of nematode reproduction by ethoprop was short-lived”
Claim · model-written summary
Aldicarb gave intermediate control over time compared with the other nematicides on tobacco.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- Aldicarbe1
- Outcome
- control over timee1
- Direction
- intermediatee1
- Comparator
- the other compoundse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on tobacco”
e1“Aldicarb gave intermediate control over time as compared to the other compounds”
Claim · model-written summary
Fenamiphos generally produced the highest tobacco yields.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- fenamiphose1
- Outcome
- yieldse1
- Direction
- higheste1
- Qualifier
- generallye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on tobacco”
e1“fenamiphos and aldicarb generally produced the highest yields”
Claim · model-written summary
Aldicarb generally produced the highest tobacco yields.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- aldicarbe1
- Outcome
- yieldse1
- Direction
- higheste1
- Qualifier
- generallye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on tobacco”
e1“fenamiphos and aldicarb generally produced the highest yields”
Claim · model-written summary
Nematicidal efficacy of the compounds varied with site and season on tobacco.
- Taxon
- tobaccoNicotiana tabacumt0
- Outcome
- nematicidal efficacye1
- Setting
- site and seasone1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on tobacco”
e1“Although nematicidal efficacy of all compounds varied with site and season”
The same questions in other papers
ethoprophos · Nematoda · Nicotiana tabacum (tobacco)Positive and negative results
1 in the opposite direction
- positive
fenamiphos · Meloidogyne · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
fenamiphos · yield · Nicotiana tabacum (tobacco)Results agree
2 papers in the same direction as this paper
- positive
- positive
aldicarb · yield · Nicotiana tabacum (tobacco)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.