Claim · model-written summary
S. frugiperda damage and numbers were significantly higher in non-Bt mid- and late-season corn.
- Taxon
- sweet corne0
- Treatment
- non-Bt sweet corne0
- Interactor
- S. frugiperda
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Spodoptera frugiperdae0pest - Outcome
- Damage and numbers of H. zea and S. frugiperdae0
- Direction
- highere0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Damage and numbers of H. zea and S. frugiperda also were significantly higher in the non-Bt sweet corn planted in mid- and late-season plantings.”
Title
Insect Populations on Bacillus thuringiensis Transgenic Sweet Corn
Richard L. Hassell; B. Merle Shepard Journal of Entomological Science 2002. doi:10.18474/0749-8004-37.4.285
Other claims from this paper (9)
- Observation No fall armyworms were present in early-planted corn.
- Intervention effect Bt corn significantly reduced corn earworm numbers in the early planting.
- Intervention effect H. zea infested 65% of non-Bt ears versus 10% of Bt ears.
- Intervention effect H. zea damage and numbers were significantly higher in non-Bt mid- and late-season corn.
- Intervention effect Mid-season H. zea ear damage was 77% in nontransgenic and 21% in Bt corn.
- Intervention effect Late-planted H. zea populations averaged fewer than 2 per 120 ears in Bt corn versus 15 per 120 ears in non-Bt corn.
- Association Fall armyworm whorl damage significantly reduced plant height in mid- and late-season nontransgenic crops, but not Bt corn.
- Intervention effect Other insect and spider numbers were low and did not significantly differ between treatments.
- Recommendation The authors expect Bt sweet corn to reduce H. zea and S. frugiperda populations and limit pesticide use.