Abstract
Fall armyworm, Spodoptera frugiperda is an invasive insect pest of maize in plains and hills of Nepal causing serious damage in summer as well as winter maize production. Field experiments were conducted in Randomized Complete Block Design (RCBD) to evaluate five chemical insecticides against S. frugiperda at National Entomology Research Center, Khumaltar, Lalitpur during 2021 and 2022. On the basis of percent plant with live larvae infestation, damage symptoms and damage score, Spinosad 45% SC, Spinetoram 11.7% SC and Chlorantraniliprole 18.5% SC were found consistently superior among the treatments. Average percent plant infestation with live larvae was recorded 0 to 3.81 percent whereas, percent plant with FAW damage symptoms was recorded 0 to 5.72 percent on Spinosad, Spinetoram and Chlorantraniliprole treated plots. Statistically, cocktail insecticide Chlorpyrifos 50% + Cypermethrin 5% EC was also found effective in comparison to control and average percent plant with live larvae and damage symptoms were recorded 14.82 to 31.48 percent and 4.74 to 46.29 percent, respectively. Statistically, Azadirachtin 0.15% was also found effective as compared to control, however, percent plant infestation was recorded as high as 91.57 percent. Spinosad, Spinetoram and Chlorantraniliprole can be judiciously utilized for chemical management of fall armyworm in Nepal.
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Claims 11
Claim · model-written summary
Spinosad was consistently superior by infestation and damage measures.
- Treatment
- Spinosad 45% SCe0
- Interactor
- Spodoptera frugiperda
.jpg?width=60)
Spodoptera frugiperdat0pest - Outcome
- consistently superiore0
- Direction
- superiore0
- Comparator
- the treatmentse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Spinosad 45% SC, Spinetoram 11.7% SC and Chlorantraniliprole 18.5% SC were found consistently superior among the treatments.”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Spinetoram was consistently superior by infestation and damage measures.
- Treatment
- Spinetoram 11.7% SCe0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- consistently superiore0
- Direction
- superiore0
- Comparator
- the treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spinosad 45% SC, Spinetoram 11.7% SC and Chlorantraniliprole 18.5% SC were found consistently superior among the treatments.”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Chlorantraniliprole was consistently superior by infestation and damage measures.
- Treatment
- Chlorantraniliprole 18.5% SCe0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- consistently superiore0
- Direction
- superiore0
- Comparator
- the treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spinosad 45% SC, Spinetoram 11.7% SC and Chlorantraniliprole 18.5% SC were found consistently superior among the treatments.”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Across the three leading treatments, live-larva plant infestation was 0 to 3.81 percent.
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- percent plant infestation with live larvaee0
- Value
- 0 to 3.81 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average percent plant infestation with live larvae was recorded 0 to 3.81 percent”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Across the three leading treatments, plants with FAW damage symptoms were 0 to 5.72 percent.
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- percent plant with FAW damage symptomse0
- Value
- 0 to 5.72 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percent plant with FAW damage symptoms was recorded 0 to 5.72 percent”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Chlorpyrifos plus Cypermethrin was effective compared with control.
- Treatment
- Chlorpyrifos 50% + Cypermethrin 5% ECe0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- effectivee0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorpyrifos 50% + Cypermethrin 5% EC was also found effective in comparison to control”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Chlorpyrifos plus Cypermethrin plots had 14.82 to 31.48 percent live-larva infestation.
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- percent plant with live larvaee0
- Value
- 14.82 to 31.48 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average percent plant with live larvae and damage symptoms were recorded 14.82 to 31.48 percent and 4.74 to 46.29 percent, respectively”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Chlorpyrifos plus Cypermethrin plots had 4.74 to 46.29 percent plants with damage symptoms.
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- damage symptomse0
- Value
- 4.74 to 46.29 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average percent plant with live larvae and damage symptoms were recorded 14.82 to 31.48 percent and 4.74 to 46.29 percent, respectively”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Azadirachtin was statistically effective compared with control.
- Treatment
- Azadirachtin 0.15%e0
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- effectivee0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azadirachtin 0.15% was also found effective as compared to control”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
Azadirachtin-treated plots reached 91.57 percent plant infestation.
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdat0pest
- Outcome
- percent plant infestatione0
- Direction
- as high ase0
- Value
- 91.57 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percent plant infestation was recorded as high as 91.57 percent”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
Claim · model-written summary
The authors recommend judicious use of Spinosad, Spinetoram and Chlorantraniliprole for fall armyworm management in Nepal.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spinosad, Spinetoram and Chlorantraniliprole can be judiciously utilized for chemical management of fall armyworm in Nepal.”
t0“Spodoptera frugiperda (J. E. Smith) in maize”
The same questions in other papers
chlorpyrifos · Spodoptera frugiperda · Zea mays (maize)Positive and negative results
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- no effect
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See all 11 papers →chlorantraniliprole · Spodoptera frugiperda · Zea mays (maize)Positive and negative results
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See all 48 papers →cypermethrin · Spodoptera frugiperda · Zea mays (maize)Results agree
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See all 5 papers →azadirachtin · Spodoptera frugiperda · Zea mays (maize)Results agree
6 papers in the same direction as this paper
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See all 7 papers →spinosad · Spodoptera frugiperda · Zea mays (maize)Results agree
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See all 26 papers →Spinetoram · Spodoptera frugiperda · Zea mays (maize)Results agree
27 papers in the same direction as this paper
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See all 28 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.