Paper · 2000 · International Journal of Pest Management

Toxicity of biorational insecticides toHelicoverpaspp. (Lepidoptera: Noctuidae) and predators in cotton field

D. L. Ma; G. Gordh; M. P. Zalucki

11
claims
23
verbatim quotes
29
citations
2
research areas
—
Not open access

Abstract

Field trials on upland cotton (Gossypium hirstum L.) during its reproductive phase were used to assess the toxicity of several biorational pesticides and chemicals to Helicoverpa armigera (Hübner) and H. puntigera Wallengren, as well as major predators at Dalby, Queensland, Australia. Moderate rate-dependent control was obtained in plots treated with neem (Azadirachta indica A. Juss) seed extract-azadirachtin (Aza) at rates of 30, 60 and 90 g/ha. Plots treated with Talstar EC (bifenthrin) applications achieved the best results, followed by treatment with alternation of chemicals (methomyl, bifenthrin, thiodicarb and endosulfan) and biorational insecticides (neem oil, azadirachtin and Bacillus thuringiensis kurstaki var. Berliner). Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitive to Aza, tooseendanin (Tsdn) andBT applications. In contrast, chemicals were very destructive of predators. All treatments provided some protection from infestation of H. armigera and H. puntigera. The effect of Aza on Helicoverpa spp. was reflected in a relatively higher yield of seed cotton harvested from Aza-treated plots compared with the control, but chemical control achieved significantly higher yields than any other treatment.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azadirachtin gave moderate dose-dependent Helicoverpa control.

Taxon
upland cottont0
Treatment
neem (Azadirachta indica A. Juss) seed extract-azadirachtin (Aza) at rates of 30, 60 and 90 g/hae0
Interactor
Helicoverpa armigeraHelicoverpa armigerae1pest
Outcome
controle0
Direction
Moderate rate-dependent controle0

Not reportedComparator

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

Helicoverpa armigera
Helicoverpa armigera · InteractorRaimundo Pastor · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Moderate rate-dependent control was obtained in plots treated with neem (Azadirachta indica A. Juss) seed extract-azadirachtin (Aza) at rates of 30, 60 and 90 g/ha.”

✓ located verbatim in the source · abstract, characters 286–450 · show in text ↑
t0

“upland cotton (Gossypium hirstum L.)”

✓ located verbatim in the source · abstract, characters 16–52 · show in text ↑
e1

“Helicoverpa armigera (Hübner) and H. puntigera Wallengren”

✓ located verbatim in the source · abstract, characters 167–224 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Talstar EC achieved the best pest-control result.

Treatment
Talstar EC (bifenthrin) applicationse0
Outcome
best resultse0
Direction
best resultse0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Plots treated with Talstar EC (bifenthrin) applications achieved the best results, followed by treatment with alternation of chemicals (methomyl, bifenthrin, thiodicarb and endosulfan) and biorational insecticides (neem oil, azadirachtin and Bacillus thuringiensis kurstaki var. Berliner).”

✓ located verbatim in the source · abstract, characters 451–740 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Alternating chemicals and biorational insecticides ranked after Talstar EC.

Treatment
alternation of chemicals (methomyl, bifenthrin, thiodicarb and endosulfan) and biorational insecticides (neem oil, azadirachtin and Bacillus thuringiensis kurstaki var. Berliner)e0
Outcome
followed bye0
Direction
followed bye0
Comparator
Talstar EC (bifenthrin)e0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Plots treated with Talstar EC (bifenthrin) applications achieved the best results, followed by treatment with alternation of chemicals (methomyl, bifenthrin, thiodicarb and endosulfan) and biorational insecticides (neem oil, azadirachtin and Bacillus thuringiensis kurstaki var. Berliner).”

✓ located verbatim in the source · abstract, characters 451–740 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Predators were insensitive to azadirachtin applications.

Treatment
Azae0
Interactor
Predatorse0other
Outcome
Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitivee0
Direction
insensitivee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitive to Aza, tooseendanin (Tsdn) andBT applications.”

✓ located verbatim in the source · abstract, characters 741–879 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Predators were insensitive to tooseendanin applications.

Treatment
tooseendanin (Tsdn)e0
Interactor
Predatorse0other
Outcome
Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitivee0
Direction
insensitivee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitive to Aza, tooseendanin (Tsdn) andBT applications.”

✓ located verbatim in the source · abstract, characters 741–879 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Predators were insensitive to BT applications.

Treatment
BT applicationse0
Interactor
Predatorse0other
Outcome
Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitivee0
Direction
insensitivee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Predators, including lady beetles, lacewings, spiders and predatory bugs, were insensitive to Aza, tooseendanin (Tsdn) andBT applications.”

✓ located verbatim in the source · abstract, characters 741–879 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chemical treatments were highly destructive to predators.

Treatment
chemicalse0
Interactor
predatorse0other
Outcome
predatorse0
Direction
very destructivee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In contrast, chemicals were very destructive of predators.”

✓ located verbatim in the source · abstract, characters 880–938 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All treatments provided some protection against H. armigera infestation.

Treatment
All treatmentse0
Interactor
H. armigeraHelicoverpa armigerae0pest
Outcome
infestation of H. armigerae0
Direction
some protectione0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗
Helicoverpa armigera
Helicoverpa armigera · InteractorRaimundo Pastor · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“All treatments provided some protection from infestation of H. armigera and H. puntigera.”

✓ located verbatim in the source · abstract, characters 939–1028 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All treatments provided some protection against H. puntigera infestation.

Treatment
All treatmentse0
Interactor
H. puntigerae0pest
Outcome
H. puntigerae0
Direction
some protectione0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“All treatments provided some protection from infestation of H. armigera and H. puntigera.”

✓ located verbatim in the source · abstract, characters 939–1028 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azadirachtin-treated plots yielded more seed cotton than controls.

Treatment
Aza-treated plotse0
Interactor
Helicoverpa spp.Helicoverpae0pest
Outcome
yield of seed cottone0
Direction
relatively highere0
Comparator
the controle0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗
Helicoverpa
Helicoverpa · Interactor · picture of the genus (one of its species)Eric SYLVESTRE · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The effect of Aza on Helicoverpa spp. was reflected in a relatively higher yield of seed cotton harvested from Aza-treated plots compared with the control, but chemical control achieved significantly higher yields than any other treatment.”

✓ located verbatim in the source · abstract, characters 1029–1268 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chemical control produced significantly higher seed cotton yield than other treatments.

Treatment
chemical controle0
Outcome
yieldse0
Direction
highere0
Comparator
any other treatmente0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of Aza on Helicoverpa spp. was reflected in a relatively higher yield of seed cotton harvested from Aza-treated plots compared with the control, but chemical control achieved significantly higher yields than any other treatment.”

✓ located verbatim in the source · abstract, characters 1029–1268 · show in text ↑
t0

“cotton field”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑

Azadirachta indica · Helicoverpa armigera · Gossypium hirsutum (cotton)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

botanical · Helicoverpa armigera · Gossypium hirsutum (cotton)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

transgenic · pest · Gossypium hirsutum (cotton)Positive and negative results

47 papers: 31 positive, 16 negative or no effect

30 papers in the same direction as this paper · 7 in the opposite direction · 9 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

43 papers more in this group

See all 47 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.