Abstract
Field experiments comparing no-tillage and plow-tillage practices demonstrated that infestations by the fall armyworm, Spodoptera frugiperda (J. E. Smith), ultimately become similar in either cropping system. However, in certain no-tillage situations where high mulch concentrations were present on the soil surface, oviposition and damage were reduced. Significantly fewer egg masses and damage were sampled on corn, Zea mays L., (3-leaf stage) while seedlings remained within no-tillage mulch. Oviposition quickly became similar to that observed in plow-tillage systems when the plants grew above the mulch canopy of no-tillage. The number of egg masses on corn older than 4 leaves was similar in either cropping system, and leaf injury at plant silking was the same. In a comparison of corn, sorghum (Sorghum bicolor [L.] Moench.), and soybeans (Glycine max L.), the latter crop had no damage in either tillage system while corn and sorghum were heavily infested. Efficacy of chlorpyrifos (0.56 kg [AI]/ha) for controlling fall armyworm leaf damage was similar in corn and sorghum in either cropping system.
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Claims 9
Claim · model-written summary
Fall armyworm infestations eventually became similar under no tillage and plow tillage.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- no-tillagee2
- Interactor
- Spodoptera frugiperda
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Spodoptera frugiperdae0pest - Outcome
- infestations by the fall armyworme0
- Direction
- similare0
- Comparator
- plow-tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“infestations by the fall armyworm, Spodoptera frugiperda (J. E. Smith), ultimately become similar in either cropping system”
e1“on corn, Zea mays L., (3-leaf stage)”
e2“no-tillage and plow-tillage practices”
Claim · model-written summary
High mulch in no tillage situations reduced oviposition and damage.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- high mulch concentrationse0
- Interactor
- fall armywormSpodoptera frugiperdae2peste0
- Outcome
- oviposition and damagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in certain no-tillage situations where high mulch concentrations were present on the soil surface, oviposition and damage were reduced”
e1“on corn, Zea mays L., (3-leaf stage)”
e2“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Three leaf corn seedlings within no tillage mulch had significantly fewer fall armyworm egg masses and less damage.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- 3-leaf stagee0
- Treatment
- no-tillage mulche0
- Interactor
- fall armywormSpodoptera frugiperdae1peste0
- Outcome
- egg masses and damagee0
- Direction
- fewere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly fewer egg masses and damage were sampled on corn, Zea mays L., (3-leaf stage) while seedlings remained within no-tillage mulch”
e1“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Oviposition became similar to plow tillage after corn rose above the mulch canopy.
- Taxon
- cornZea mays subsp. mayse1
- Interactor
- fall armywormSpodoptera frugiperdae2peste0
- Outcome
- Ovipositione0
- Direction
- similare0
- Comparator
- plow-tillage systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oviposition quickly became similar to that observed in plow-tillage systems when the plants grew above the mulch canopy of no-tillage”
e1“on corn, Zea mays L., (3-leaf stage)”
e2“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Egg mass numbers on corn older than four leaves were similar under both tillage systems.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- older than 4 leavese0
- Interactor
- fall armywormSpodoptera frugiperdae1peste0
- Outcome
- number of egg massese0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of egg masses on corn older than 4 leaves was similar in either cropping system”
e1“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Leaf injury at corn silking was the same in both tillage systems.
- Taxon
- cornZea mays subsp. mayse1
- Organ / stage
- plant silkinge0
- Interactor
- fall armywormSpodoptera frugiperdae2peste0
- Outcome
- leaf injurye0
- Direction
- samee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf injury at plant silking was the same”
e1“on corn, Zea mays L., (3-leaf stage)”
e2“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Soybeans had no fall armyworm damage in either tillage system.
- Taxon
- soybeans
Glycine maxe0 - Interactor
- fall armywormSpodoptera frugiperdae1peste0
- Outcome
- no damagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybeans (Glycine max L.), the latter crop had no damage in either tillage system”
e1“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Corn and sorghum were heavily infested with fall armyworm.
- Taxon
- corn and sorghum
SorghumZea mays subsp. mayse0 - Interactor
- fall armywormSpodoptera frugiperdae1peste0
- Outcome
- heavily infestede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn and sorghum were heavily infested”
e1“the fall armyworm, Spodoptera frugiperda (J. E. Smith)”
Claim · model-written summary
Chlorpyrifos had similar efficacy against fall armyworm leaf damage across corn, sorghum, and tillage systems.
- Taxon
- corn and sorghumSorghumZea mays subsp. mayse0
- Treatment
- chlorpyrifos (0.56 kg [AI]/ha)e0
- Interactor
- fall armywormSpodoptera frugiperdae0pest
- Outcome
- fall armyworm leaf damagee0
- Direction
- similare0
- Comparator
- either cropping systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Efficacy of chlorpyrifos (0.56 kg [AI]/ha) for controlling fall armyworm leaf damage was similar in corn and sorghum in either cropping system”
The same questions in other papers
chlorpyrifos · Spodoptera frugiperda · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 8 reporting no difference from an alternative
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →tillage · Spodoptera frugiperda · Zea mays (maize)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.