Abstract
A field study was made of the effects of three rates of fenamiphos [ethyl-3-methyl-4-(methylthio) phenyl (1-methylethyl) phosphoramidate] and fensulfothion [O,O-diethyl O-(p-(methylsulfinyl) phenyl) phosphorothioate] on root lesion nematode numbers (Pratylenchus spp.), and on forage yields of red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.). Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes. Seeding year yields were increased by both nematicides. Neither nematicide resulted in substantial yield increases at the time of the the first cut (June) of the second growing season, but did result in considerably increased yields at the time of the second and third cuts. At the same rates of application, fenamiphos provided better control of nematodes than did fensulfothion, particularly with increasing time following treatment. The larger total yield increases for the two growing seasons from fenamiphos-treated plots were coincident with better root lesion nematode control. Fewer alfalfa, birdsfoot trefoil and red clover taproots were infected by Fusarium spp. and Rhizoctonia solani Kühn in fenamiphos-treated plots, where there were fewer root lesion nematodes, than in check plots. Laboratory tests indicated that field rates of fensulfothion and fenamiphos were not fungicidal to a number of soil fungi, including Fusarium spp. and R. solani, found associated with forage legume roots.
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 16
Claim · model-written summary
fensulfothion reduced root lesion nematodes in the soil and rootlets of red clover.
- Taxon
- red clover
Trifolium pratenset0 - Treatment
- fensulfothione0
- Interactor
- root lesion nematodese0pest
- Outcome
- populations of root lesion nematodese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
fenamiphos reduced root lesion nematodes in the soil and rootlets of red clover.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- fenamiphose0
- Interactor
- root lesion nematodese0pest
- Outcome
- populations of root lesion nematodese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
fensulfothion reduced root lesion nematodes in the soil and rootlets of alfalfa.
- Taxon
- alfalfa
Medicago sativat0 - Treatment
- fensulfothione0
- Interactor
- root lesion nematodese0pest
- Outcome
- populations of root lesion nematodese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
fenamiphos reduced root lesion nematodes in the soil and rootlets of alfalfa.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- fenamiphose0
- Interactor
- root lesion nematodese0pest
- Outcome
- populations of root lesion nematodese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
fensulfothion reduced root lesion nematodes in the soil and rootlets of birdsfoot trefoil.
- Taxon
- birdsfoot trefoilt0
- Treatment
- fensulfothione0
- Interactor
- root lesion nematodese0pest
- Outcome
- populations of root lesion nematodese0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
fenamiphos reduced root lesion nematodes in the soil and rootlets of birdsfoot trefoil.
- Taxon
- birdsfoot trefoilt0
- Treatment
- fenamiphose0
- Interactor
- root lesion nematodese0pest
- Outcome
- populations of root lesion nematodese0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Both nematicides, at the rates tested (fensulfothion − 11.2, 22.4 and 44.8 kg/ha; fenamiphos − 5.6, 11.2 and 22.4 kg/ha) reduced populations of root lesion nematodes in the soil, as well as in rootlets of the three forage legumes.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
Both nematicides increased seeding-year yields of red clover.
- Taxon
- red cloverTrifolium pratenset0
- Treatment
- both nematicidese0
- Outcome
- Seeding year yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding year yields were increased by both nematicides.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
Both nematicides increased seeding-year yields of alfalfa.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- both nematicidese0
- Outcome
- Seeding year yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding year yields were increased by both nematicides.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
Both nematicides increased seeding-year yields of birdsfoot trefoil.
Not reportedComparator
Verbatim
e0“Seeding year yields were increased by both nematicides.”
t0“red clover (Trifolium pratense L.), alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.)”
Claim · model-written summary
Nematicides did not substantially increase forage yields at the first cut of the second season.
- Taxon
- forage legumest0
- Treatment
- nematicidee0
- Outcome
- yield increasese0
- Direction
- substantial yield increasese0
Not reportedComparator
Verbatim
e0“Neither nematicide resulted in substantial yield increases at the time of the the first cut (June) of the second growing season”
t0“FORAGE LEGUMES”
Claim · model-written summary
Nematicides considerably increased forage yields at the second and third cuts of the second season.
Not reportedComparator
Verbatim
e0“did result in considerably increased yields at the time of the second and third cuts”
t0“FORAGE LEGUMES”
e1“Both nematicides, at the rates tested”
Claim · model-written summary
Fenamiphos controlled nematodes better than fensulfothion at equal rates, especially later after treatment.
Verbatim
e0“At the same rates of application, fenamiphos provided better control of nematodes than did fensulfothion, particularly with increasing time following treatment.”
t0“FORAGE LEGUMES”
Claim · model-written summary
Larger two-season yield increases with fenamiphos coincided with better nematode control.
Verbatim
e0“The larger total yield increases for the two growing seasons from fenamiphos-treated plots were coincident with better root lesion nematode control.”
t0“FORAGE LEGUMES”
Claim · model-written summary
Fenamiphos plots had fewer legume taproots infected by Fusarium spp. than check plots.
- Taxon
- alfalfa, birdsfoot trefoil and red clovere0
- Treatment
- fenamiphos-treated plotse0
- Outcome
- taproots were infectede0
- Direction
- Fewere0
- Comparator
- check plotse0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fewer alfalfa, birdsfoot trefoil and red clover taproots were infected by Fusarium spp. and Rhizoctonia solani Kühn in fenamiphos-treated plots, where there were fewer root lesion nematodes, than in check plots.”
Claim · model-written summary
Fenamiphos plots had fewer legume taproots infected by Rhizoctonia solani Kühn than check plots.
- Taxon
- alfalfa, birdsfoot trefoil and red clovere0
- Treatment
- fenamiphos-treated plotse0
- Interactor
- Rhizoctonia solani Kühn
Rhizoctonia solanie0pathogen - Outcome
- taproots were infectede0
- Direction
- Fewere0
- Comparator
- check plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fewer alfalfa, birdsfoot trefoil and red clover taproots were infected by Fusarium spp. and Rhizoctonia solani Kühn in fenamiphos-treated plots, where there were fewer root lesion nematodes, than in check plots.”
Claim · model-written summary
Field rates of both nematicides were not fungicidal to tested soil fungi.
Verbatim
e0“Laboratory tests indicated that field rates of fensulfothion and fenamiphos were not fungicidal to a number of soil fungi, including Fusarium spp. and R. solani, found associated with forage legume roots.”
The same questions in other papers
insecticide · yield · Medicago sativa (alfalfa)Results differ
16 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- negative
21 papers more in this group
See all 25 papers →insecticide · yield · Trifolium pratense (red clover)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- 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.