Abstract
Six insecticides of different chemistries were evaluated against the cotton bollworm, Helicoverpa zea (Boddie), in non-B.t. (Deltapine 'DP 5415', Deltapine 'DP 5415RR') and transgenic Bacillus thuringiensis (Berliner) (B.t.) (Deltapine 'NuCOTN 33B', Deltapine 'DP 458 B/RR') cotton. In 1998, treatments consisted of three rates each of a pyrethroid (lambda-cyhalothrin), spinosyn (spinosad), carbamate (thiodicarb), pyrrole (chlorfenapyr), oxadiazine (indoxacarb), and avermectin (emamectin benzoate) in a nonirrigated field. In 1999, treatments consisted of three rates each of lambda-cyhalothrin, spinosad, thiodicarb, and indoxacarb in an irrigated and a nonirrigated (dryland) field. The highest rate of each insecticide corresponded to normal grower-use rates. Spinosad and thiodicarb controlled H. zea in non-B.t. cotton, whereas other materials were less effective. Even though H. zea is becoming increasingly resistant to pyrethroid insecticides, lambda-cyhalothrin was highly effective in dryland B. thuringiensis cotton. Spinosad and thiodicarb were equally effective. Data indicated that reduced rates of lambda-cyhalothrin, spinosad, and thiodicarb could be used for control of H. zea in dryland B.t. cotton systems. However, reduced rates of these insecticides in a heavily irrigated B.t. cotton system did not provide adequate control.
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Claims 8
Claim · model-written summary
Spinosad controlled cotton bollworm in non-Bt cotton.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- Spinosade0
- Interactor
- H. zea
.jpg?width=60)
Helicoverpa zeae0pest - Outcome
- H. zeae0
- Direction
- controllede0
- Comparator
- other materialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Spinosad and thiodicarb controlled H. zea in non-B.t. cotton, whereas other materials were less effective.”
t0“cotton”
Claim · model-written summary
Thiodicarb controlled cotton bollworm in non-Bt cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- thiodicarbe0
- Interactor
- H. zeaHelicoverpa zeae0pest
- Outcome
- H. zeae0
- Direction
- controllede0
- Comparator
- other materialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spinosad and thiodicarb controlled H. zea in non-B.t. cotton, whereas other materials were less effective.”
t0“cotton”
Claim · model-written summary
Lambda-cyhalothrin was highly effective against bollworm in dryland Bt cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- lambda-cyhalothrine0
- Interactor
- H. zeaHelicoverpa zeae2peste1
- Outcome
- H. zeae2
- Direction
- highly effectivee0
- Setting
- drylande0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lambda-cyhalothrin was highly effective in dryland B. thuringiensis cotton.”
t0“cotton”
e1“Six insecticides of different chemistries were evaluated against the cotton bollworm, Helicoverpa zea (Boddie)”
e2“Spinosad and thiodicarb controlled H. zea in non-B.t. cotton, whereas other materials were less effective.”
Claim · model-written summary
Spinosad and thiodicarb were equally effective against cotton bollworm.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Spinosade0
- Interactor
- H. zeaHelicoverpa zeae2pestt0
- Outcome
- H. zeae2
- Direction
- equally effectivee0
- Comparator
- thiodicarbe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spinosad and thiodicarb were equally effective.”
t0“cotton”
e2“Spinosad and thiodicarb controlled H. zea in non-B.t. cotton, whereas other materials were less effective.”
Claim · model-written summary
Reduced lambda-cyhalothrin rates could control bollworm in dryland Bt cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- lambda-cyhalothrine0
- Interactor
- H. zeaHelicoverpa zeae0pest
- Outcome
- control of H. zeae0
- Setting
- drylande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced rates of lambda-cyhalothrin, spinosad, and thiodicarb could be used for control of H. zea in dryland B.t. cotton systems.”
t0“cotton”
Claim · model-written summary
Reduced spinosad rates could control bollworm in dryland Bt cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- spinosade0
- Interactor
- H. zeaHelicoverpa zeae0pest
- Outcome
- control of H. zeae0
- Setting
- drylande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced rates of lambda-cyhalothrin, spinosad, and thiodicarb could be used for control of H. zea in dryland B.t. cotton systems.”
t0“cotton”
Claim · model-written summary
Reduced thiodicarb rates could control bollworm in dryland Bt cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- thiodicarbe0
- Interactor
- H. zeaHelicoverpa zeae0pest
- Outcome
- control of H. zeae0
- Setting
- drylande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced rates of lambda-cyhalothrin, spinosad, and thiodicarb could be used for control of H. zea in dryland B.t. cotton systems.”
t0“cotton”
Claim · model-written summary
Reduced rates of these insecticides gave inadequate bollworm control in heavily irrigated Bt cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- reduced rates of these insecticidese0
- Interactor
- H. zeaHelicoverpa zeae2peste1
- Outcome
- adequate controle0
- Direction
- did not providee0
- Setting
- heavily irrigatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced rates of these insecticides in a heavily irrigated B.t. cotton system did not provide adequate control.”
t0“cotton”
e1“Six insecticides of different chemistries were evaluated against the cotton bollworm, Helicoverpa zea (Boddie)”
e2“Spinosad and thiodicarb controlled H. zea in non-B.t. cotton, whereas other materials were less effective.”
The same questions in other papers
lambda-cyhalothrin · Helicoverpa zea · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
spinosad · Helicoverpa zea · Gossypium hirsutum (cotton)Results agree
2 papers in the same direction as this paper
- positive
- positive
insecticide · Helicoverpa zea · Gossypium hirsutum (cotton)Positive and negative results
3 papers in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
14 papers more in this group
See all 18 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.