Abstract
In field tests, no significant loss in yield occurred when whorls of grain sorghum, Sorghum bicolor (L.) Moench, were infested with 2, 4, 8, or 16 first instars of the fall armyworm, Spodoptera frugiperda (J. E. Smith), at 10 or 20 days after planting. However, infestations applied at 30–49 days after planting caused a high yield loss that increased progressively as the number of larvae increased. When similar infestation levels of corn earworms, Heliothis zea (Boddie), were applied, loss was greatest when sorghum heads were infested at 50% bloom. Injury was less when heads were infested 2 wk after bloom. Increasing the number of corn earworm larvae above 2/head did not increase loss of yield significantly.
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Claims 5
Claim · model-written summary
In field tests, infesting grain sorghum whorls with 2, 4, 8 or 16 fall armyworm first instars at 10 or 20 days after planting caused no significant yield loss.
- Taxon
- grain sorghum
Sorghum bicolore1 - Treatment
- infested with 2, 4, 8, or 16 first instars of the fall armyworme1
- Interactor
- fall armyworm
.jpg?width=60)
Spodoptera frugiperdae1pest - Outcome
- yielde1
- Direction
- no significant losse1
- Setting
- field testse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“In field tests, no significant loss in yield occurred when whorls of grain sorghum, Sorghum bicolor (L.) Moench, were infested with 2, 4, 8, or 16 first instars of the fall armyworm, Spodoptera frugiperda (J. E. Smith), at 10 or 20 days after planting”
Claim · model-written summary
Fall armyworm infestations applied to grain sorghum at 30-49 days after planting caused a high yield loss that increased progressively with the number of larvae.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- infestations applied at 30–49 days after plantinge1
- Interactor
- Fall ArmywormSpodoptera frugiperdat0pest
- Outcome
- yield losse1
- Direction
- increased progressivelye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grain Sorghum by Fall Armyworm and Corn Earworm”
e1“infestations applied at 30–49 days after planting caused a high yield loss that increased progressively as the number of larvae increased”
Claim · model-written summary
Yield loss in grain sorghum from corn earworm was greatest when heads were infested at 50% bloom.
- Treatment
- infested at 50% bloome1
- Interactor
- corn earworms
.jpg?width=60)
Helicoverpa zeae2pest - Outcome
- losse1
- Direction
- greateste1
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Grain Sorghum by Fall Armyworm and Corn Earworm”
e1“loss was greatest when sorghum heads were infested at 50% bloom”
e2“corn earworms”
Claim · model-written summary
Corn earworm injury to grain sorghum was less when heads were infested 2 weeks after bloom.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- infested 2 wk after bloome1
- Interactor
- Corn EarwormHelicoverpa zeat0pest
- Outcome
- Injurye1
- Direction
- lesse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grain Sorghum by Fall Armyworm and Corn Earworm”
e1“Injury was less when heads were infested 2 wk after bloom”
Claim · model-written summary
Increasing the number of corn earworm larvae above 2 per head did not significantly increase yield loss in grain sorghum.
- Taxon
- Grain SorghumSorghum bicolort0
- Treatment
- Increasing the number of corn earworm larvae above 2/heade1
- Interactor
- corn earwormHelicoverpa zeae1pest
- Outcome
- loss of yielde1
- Direction
- did not increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grain Sorghum by Fall Armyworm and Corn Earworm”
e1“Increasing the number of corn earworm larvae above 2/head did not increase loss of yield significantly”
The same questions in other papers
Spodoptera frugiperda · yield · Sorghum bicolor (sorghum)Positive and negative results
1 in the opposite direction
- positive
Helicoverpa zea · yield · Sorghum bicolor (sorghum)Positive and negative results
1 in the opposite direction
- positive
infection · yield · Sorghum bicolor (sorghum)Results agree
3 papers in the same direction as this paper
- negative
- negative
- no effect
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.