Paper · 2009 · Journal of Insect Science

Supplemental Control of Lepidopterous Pests on Bt Transgenic Sweet Corn with Biologically-Based Spray Treatments

Robert R. Farrar; B. Merle Shepard; Martin Shapiro; et al.

7
claims
14
verbatim quotes
17
citations
2
research areas
✓
Open access · cc-by

Abstract

Biologically-based spray treatments, including nucleopolyhedroviruses, neem, and spinosad, were evaluated as supplemental controls for the fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), on transgenic sweet corn, Zea mays (L.) (Poales: Poaceae), expressing a Cry1Ab toxin from Bacillus thuringiensis Berliner (Bacillales: Bacillaceae) (Bt). Overall, transgenic corn supported lower densities of both pests than did nontransgenic corn. Control of the fall armyworm was improved in both whorl-stage and tassel-stage corn by the use of either a nucleopolyhedrovirus or neem, but the greatest improvement was seen with spinosad. Only spinosad consistently reduced damage to ears, which was caused by both pest species. In general, efficacy of the spray materials did not differ greatly between transgenic and nontransgenic corn.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Transgenic corn had lower fall armyworm density than nontransgenic corn.

Treatment
transgenic corne0
Interactor
fall armywormSpodoptera frugiperdae1pest
Outcome
fall armyworme1
Direction
lowere0
Comparator
nontransgenic corne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Spodoptera frugiperda
Spodoptera frugiperda · InteractorUSGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Overall, transgenic corn supported lower densities of both pests than did nontransgenic corn.”

✓ located verbatim in the source · abstract, characters 414–507 · show in text ↑
e1

“fall armyworm, Spodoptera frugiperda (J. E. Smith)”

✓ located verbatim in the source · abstract, characters 139–189 · show in text ↑
t0

“Sweet Corn”

✓ located verbatim in the source · title, characters 61–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Transgenic corn had lower corn earworm density than nontransgenic corn.

Treatment
transgenic corne0
Interactor
corn earwormHelicoverpa zeae1pest
Outcome
corn earworme1
Direction
lowere0
Comparator
nontransgenic corne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Helicoverpa zea
Helicoverpa zea · InteractorAndy Reago & Chrissy McClarren · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Overall, transgenic corn supported lower densities of both pests than did nontransgenic corn.”

✓ located verbatim in the source · abstract, characters 414–507 · show in text ↑
e1

“corn earworm, Helicoverpa zea (Boddie)”

✓ located verbatim in the source · abstract, characters 195–233 · show in text ↑
t0

“Sweet Corn”

✓ located verbatim in the source · title, characters 61–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nucleopolyhedrovirus improved fall armyworm control in whorl and tassel stage corn.

Organ / stage
whorl-stage and tassel-stagee0
Treatment
a nucleopolyhedroviruse0
Interactor
fall armywormSpodoptera frugiperdae0pest
Outcome
Control of the fall armyworme0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Spodoptera frugiperda
Spodoptera frugiperda · InteractorUSGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Control of the fall armyworm was improved in both whorl-stage and tassel-stage corn by the use of either a nucleopolyhedrovirus or neem”

✓ located verbatim in the source · abstract, characters 508–643 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem improved fall armyworm control in whorl and tassel stage corn.

Organ / stage
whorl-stage and tassel-stagee0
Treatment
neeme0
Interactor
fall armywormSpodoptera frugiperdae0pest
Outcome
Control of the fall armyworme0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Spodoptera frugiperda
Spodoptera frugiperda · InteractorUSGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Control of the fall armyworm was improved in both whorl-stage and tassel-stage corn by the use of either a nucleopolyhedrovirus or neem”

✓ located verbatim in the source · abstract, characters 508–643 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spinosad gave the greatest improvement in fall armyworm control.

Treatment
spinosade0
Interactor
fall armywormSpodoptera frugiperdae1pest
Outcome
Control of the fall armyworme1
Direction
greatest improvemente0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗
Spodoptera frugiperda
Spodoptera frugiperda · InteractorUSGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA · Public domain · Wikimedia Commons ↗

Verbatim

e0

“but the greatest improvement was seen with spinosad.”

✓ located verbatim in the source · abstract, characters 645–697 · show in text ↑
e1

“Control of the fall armyworm was improved in both whorl-stage and tassel-stage corn”

✓ located verbatim in the source · abstract, characters 508–591 · show in text ↑
t0

“Sweet Corn”

✓ located verbatim in the source · title, characters 61–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Only spinosad consistently reduced ear damage caused by both pest species.

Treatment
spinosade0
Outcome
damage to earse0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Only spinosad consistently reduced damage to ears, which was caused by both pest species.”

✓ located verbatim in the source · abstract, characters 698–787 · show in text ↑
t0

“Sweet Corn”

✓ located verbatim in the source · title, characters 61–71 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Spray efficacy did not differ greatly between transgenic and nontransgenic corn.

Outcome
efficacy of the spray materialse0
Direction
did not differ greatlye0
Comparator
nontransgenic corne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In general, efficacy of the spray materials did not differ greatly between transgenic and nontransgenic corn.”

✓ located verbatim in the source · abstract, characters 788–897 · show in text ↑

spinosad · pest · Zea mays (maize)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

spinosad · Spodoptera frugiperda · Zea mays (maize)Results agree

26 papers: 26 positive, 0 negative or no effect

25 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

22 papers more in this group

See all 26 papers →

botanical · Spodoptera frugiperda · Zea mays (maize)Positive and negative results

53 papers: 49 positive, 4 negative or no effect

48 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

49 papers more in this group

See all 53 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.