Paper · 1995 · International Journal of Pest Management

Characteristics of infestation of sweet potato by sweet potato weevilCylas formicarius(Coleoptera: Apionidae)

N. S. Talekar

6
claims
10
verbatim quotes
5
citations
2
research areas
—
Not open access

Abstract

Studies were conducted to examine the characteristics of infestation of vines of sweet potato plants by the sweet potato weevil, Cylas formicarius (F.). The use of terminal tender vine cuttings, taken even from heavily weevil‐infested sweet potato, to grow a new crop and planting such a crop in plots surrounded by barriers to reduce weevil migration from the outside to the newly planted area, produced a practically weevil‐free crop. On the contrary, crop planted to old vine cuttings in an open field was severely damaged by the weevil. Consequently, crop planted using tender vine cuttings produced significantly more root yield than the one planted to old vine cuttings, irrespective of whether the planting was done in an open field or in an insect‐protected field. Sweet potato weevil infestation of 1‐ to 8‐week‐old plants increased significantly with plant age. The insect preferred sweet potato roots over sweet potato vines when both plant parts were available for infestation. Dipping the vine cuttings for 30 min in carbofuran solution prior to planting protected the newly planted sweet potato crop for up to 6 weeks after planting.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tender vine cuttings with barriers produced a practically weevil free crop.

Taxon
sweet potatoIpomoea batatase0
Treatment
terminal tender vine cuttingse0
Interactor
weevile0pest
Outcome
practically weevil‐free crope0

Not reportedComparatorDirection

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The use of terminal tender vine cuttings, taken even from heavily weevil‐infested sweet potato, to grow a new crop and planting such a crop in plots surrounded by barriers to reduce weevil migration from the outside to the newly planted area, produced a practically weevil‐free crop”

✓ located verbatim in the source · abstract, characters 153–435 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Old vine cuttings in an open field led to severe weevil damage.

Taxon
sweet potatoIpomoea batatast0
Treatment
old vine cuttingse0
Interactor
weevile0pest
Outcome
severely damaged by the weevile0
Setting
open fielde0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“crop planted to old vine cuttings in an open field was severely damaged by the weevil”

✓ located verbatim in the source · abstract, characters 454–539 · show in text ↑
t0

“infestation of sweet potato by sweet potato weevilCylas formicarius”

✓ located verbatim in the source · title, characters 19–86 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Tender vine cuttings yielded significantly more roots than old cuttings in either field setting.

Taxon
sweet potatoIpomoea batatast0
Treatment
tender vine cuttingse0
Outcome
root yielde0
Direction
moree0
Comparator
old vine cuttingse0
Setting
open field or in an insect‐protected fielde0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“crop planted using tender vine cuttings produced significantly more root yield than the one planted to old vine cuttings, irrespective of whether the planting was done in an open field or in an insect‐protected field”

✓ located verbatim in the source · abstract, characters 555–771 · show in text ↑
t0

“infestation of sweet potato by sweet potato weevilCylas formicarius”

✓ located verbatim in the source · title, characters 19–86 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Weevil infestation increased significantly from plant age one to eight weeks.

Taxon
Sweet potatoIpomoea batatase0
Organ / stage
1‐ to 8‐week‐old plantse0
Interactor
weevile0pest
Outcome
weevil infestatione0
Direction
increasede0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Sweet potato weevil infestation of 1‐ to 8‐week‐old plants increased significantly with plant age”

✓ located verbatim in the source · abstract, characters 773–870 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weevils preferred roots over vines.

Taxon
sweet potatoIpomoea batatase0
Organ / stage
rootse0
Interactor
sweet potato weevilCylas formicariust0peste0
Outcome
preferred sweet potato roots over sweet potato vinese0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗
Cylas formicarius
Cylas formicarius · InteractorCaroline Harding, MAF · CC BY 3.0 au · Wikimedia Commons ↗

Verbatim

e0

“The insect preferred sweet potato roots over sweet potato vines when both plant parts were available for infestation”

✓ located verbatim in the source · abstract, characters 872–988 · show in text ↑
t0

“sweet potato weevil”

✓ located verbatim in the source · title, characters 50–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Carbofuran dipping protected cuttings for up to six weeks.

Taxon
sweet potatoIpomoea batatase0
Treatment
Dipping the vine cuttings for 30 min in carbofuran solutione0
Interactor
sweet potato weevilCylas formicariust0pest
Outcome
protected the newly planted sweet potato crope0
Value
up to 6 weekse0

Not reportedComparatorDirection

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗
Cylas formicarius
Cylas formicarius · InteractorCaroline Harding, MAF · CC BY 3.0 au · Wikimedia Commons ↗

Verbatim

e0

“Dipping the vine cuttings for 30 min in carbofuran solution prior to planting protected the newly planted sweet potato crop for up to 6 weeks after planting”

✓ located verbatim in the source · abstract, characters 990–1146 · show in text ↑
t0

“sweet potato weevil”

✓ located verbatim in the source · title, characters 50–69 · show in text ↑

carbofuran · Cylas formicarius · Ipomoea batatas (sweet potato)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 →

application · Cylas formicarius · Ipomoea batatas (sweet potato)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.