Paper · 2001 · Applied Entomology and Zoology

Efficacy of plant extracts for reducing larval populations of the diamondback moth, Plutella xylostella L.(Lepidoptera: Yponomeutidae) and cabbage webworm, Crocidolomia binotalis Zeller(Lepidoptera: Pyralidae), and evaluation of cabbage damage.

Dadang; Kanju Ohsawa

9
claims
14
verbatim quotes
12
citations
2
research areas
✓
Open access

Abstract

The efficacy of four plant extracts, Alpinia galanga Sw. (Zingiberaceae), Amomum cardamomum Auct. (Zingiberaceae), Cyperus rotundus L. (Cyperaceae), and Gomphrena globosa L. (Amaranthaceae) were evaluated against the diamondback moth, Plutella xylostella L. and the cabbage webworm Crocidolomia binotalis Zeller larvae on cultivated cabbage. Treatments with 0.5% A. galanga and G. globosa extracts significantly reduced P. xylostella larval density, and the percentage of infested plants, proving to be more effective than a standard insecticide Decis7 2.5EC (deltamethrin). Moreover, G. globosa significantly reduced the intensity of cabbage damage caused by P. xylostella. Treatment with 0.5% A. cardamomum extract reduced the percentage of P. xylostella-infested plants and the intensity of cabbage damage. However, the plant extracts did not effectively reduce C. binotalis larval density, the percentage of infested plants or the intensity of cabbage damage. Phytotoxic effects on cabbage plants were not observed in any extract treatment.

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Claims 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

A. galanga extract reduced P. xylostella larval density more effectively than Decis7 2.5EC.

Treatment
0.5% A. galangae0
Interactor
P. xylostellae0pest
Outcome
P. xylostella larval densitye0
Direction
reducede0
Comparator
Decis7 2.5ECe0

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatments with 0.5% A. galanga and G. globosa extracts significantly reduced P. xylostella larval density, and the percentage of infested plants, proving to be more effective than a standard insecticide Decis7 2.5EC (deltamethrin).”

✓ located verbatim in the source · abstract, characters 342–574 · show in text ↑
t0

“evaluation of cabbage damage”

✓ located verbatim in the source · title, characters 215–243 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

G. globosa extract reduced P. xylostella larval density more effectively than Decis7 2.5EC.

Treatment
G. globosa extractse0
Interactor
P. xylostellae0pest
Outcome
P. xylostella larval densitye0
Direction
reducede0
Comparator
Decis7 2.5ECe0

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatments with 0.5% A. galanga and G. globosa extracts significantly reduced P. xylostella larval density, and the percentage of infested plants, proving to be more effective than a standard insecticide Decis7 2.5EC (deltamethrin).”

✓ located verbatim in the source · abstract, characters 342–574 · show in text ↑
t0

“evaluation of cabbage damage”

✓ located verbatim in the source · title, characters 215–243 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

A. galanga extract reduced the percentage of P. xylostella infested plants.

Treatment
0.5% A. galangae0
Interactor
P. xylostellae0pest
Outcome
percentage of infested plantse0
Direction
reducede0
Comparator
Decis7 2.5ECe0

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatments with 0.5% A. galanga and G. globosa extracts significantly reduced P. xylostella larval density, and the percentage of infested plants, proving to be more effective than a standard insecticide Decis7 2.5EC (deltamethrin).”

✓ located verbatim in the source · abstract, characters 342–574 · show in text ↑
t0

“evaluation of cabbage damage”

✓ located verbatim in the source · title, characters 215–243 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

G. globosa extract reduced the percentage of P. xylostella infested plants.

Treatment
G. globosa extractse0
Interactor
P. xylostellae0pest
Outcome
percentage of infested plantse0
Direction
reducede0
Comparator
Decis7 2.5ECe0

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatments with 0.5% A. galanga and G. globosa extracts significantly reduced P. xylostella larval density, and the percentage of infested plants, proving to be more effective than a standard insecticide Decis7 2.5EC (deltamethrin).”

✓ located verbatim in the source · abstract, characters 342–574 · show in text ↑
t0

“evaluation of cabbage damage”

✓ located verbatim in the source · title, characters 215–243 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

G. globosa reduced P. xylostella cabbage damage intensity.

Treatment
G. globosae0
Interactor
P. xylostellae0pest
Outcome
intensity of cabbage damagee0
Direction
reducede0

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Moreover, G. globosa significantly reduced the intensity of cabbage damage caused by P. xylostella.”

✓ located verbatim in the source · abstract, characters 575–674 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. cardamomum extract reduced the share of P. xylostella infested plants.

Treatment
0.5% A. cardamomum extracte0
Interactor
P. xylostellae0pest
Outcome
percentage of P. xylostella-infested plantse0
Direction
reducede0

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment with 0.5% A. cardamomum extract reduced the percentage of P. xylostella-infested plants and the intensity of cabbage damage.”

✓ located verbatim in the source · abstract, characters 675–809 · show in text ↑
t0

“evaluation of cabbage damage”

✓ located verbatim in the source · title, characters 215–243 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. cardamomum extract reduced cabbage damage intensity.

Treatment
0.5% A. cardamomum extracte0
Interactor
P. xylostellae0pest
Outcome
intensity of cabbage damagee0
Direction
reducede0

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment with 0.5% A. cardamomum extract reduced the percentage of P. xylostella-infested plants and the intensity of cabbage damage.”

✓ located verbatim in the source · abstract, characters 675–809 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The extracts did not effectively reduce C. binotalis density, infestation, or cabbage damage.

Treatment
plant extractse0
Interactor
C. binotalise0pest
Outcome
C. binotalis larval density, the percentage of infested plants or the intensity of cabbage damagee0
Direction
did not effectively reducee0

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“However, the plant extracts did not effectively reduce C. binotalis larval density, the percentage of infested plants or the intensity of cabbage damage.”

✓ located verbatim in the source · abstract, characters 810–963 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

No extract treatment caused observed phytotoxic effects in cabbage.

Treatment
extract treatmente0
Outcome
Phytotoxic effectse0
Direction
not observede0

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Phytotoxic effects on cabbage plants were not observed in any extract treatment.”

✓ located verbatim in the source · abstract, characters 964–1044 · show in text ↑

botanical · crop injury · Brassica oleracea (wild cabbage)Positive and negative results

12 papers: 6 positive, 6 negative or no effect

5 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. negative
  3. negative

8 papers more in this group

See all 12 papers →

botanical · pest · Brassica oleracea (wild cabbage)Positive and negative results

78 papers: 65 positive, 13 negative or no effect

64 papers in the same direction as this paper · 13 in the opposite direction

  1. positive
  2. no effect
  3. negative

74 papers more in this group

See all 78 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.