Paper · 1999 · International Journal of Pest Management

Insecticidal activity of chinaberry, endod and pepper tree against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia

Assefa Gebre-Amlak

11
claims
22
verbatim quotes
25
citations
2
research areas
—
Not open access

Abstract

A preliminary field test in 1993/94 showed that application of extracts of fruits of chinaberry (Melia azedarach L.), endod ( Phytolacca dodecandra L.) and pepper tree (Schinus molle L.) significantly reduced the levels of leaf infestation and deadheart injury due to larvae of the maize stalk borer, Busseola fusca (Fuller), and resulted in increases in crop yield. The following season, the effects of extracts of leaves and fruits of each plant extract on B. fusca larvae were separately evaluated. Extracts of both leaves and fruits of chinaberry (either fresh or dried) were effective in reducing the number of larvae. All the rates used significantly reduced the number of larvae below those in the untreated controls. Fresh leaves and fruits of endod were also effective against B. fusca. Fruits of pepper tree were superior to leaves. Fresh leaves of this plant did not reduce the number oflarvae. Two applications of any of the three botanicals were not sufficient to provide complete protection of maize against second generation larvae. This suggests that these botanicals have only brief persistence, and more than two applications of the extracts would be necessary to reduce part numbers.

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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 11

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chinaberry fruit extract significantly reduced leaf infestation and deadheart injury caused by maize stalk borer larvae.

Taxon
maizeZea mayst0
Treatment
extracts of fruits of chinaberry (Melia azedarach L.)e1
Interactor
Busseola fuscaBusseola fuscae1pest
Outcome
levels of leaf infestation and deadheart injurye1
Direction
reducede1
Setting
Southern Ethiopiat0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Busseola fusca
Busseola fusca · InteractorLEMAUX Yves · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e1

“application of extracts of fruits of chinaberry (Melia azedarach L.), endod ( Phytolacca dodecandra L.) and pepper tree (Schinus molle L.) significantly reduced the levels of leaf infestation and deadheart injury due to larvae of the maize stalk borer, Busseola fusca (Fuller), and resulted in increases in crop yield”

✓ located verbatim in the source · abstract, characters 48–365 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Endod fruit extract significantly reduced leaf infestation and deadheart injury caused by maize stalk borer larvae.

Taxon
maizeZea mayst0
Treatment
endod ( Phytolacca dodecandra L.)e1
Interactor
Busseola fuscaBusseola fuscae1pest
Outcome
levels of leaf infestation and deadheart injurye1
Direction
reducede1
Setting
Southern Ethiopiat0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Busseola fusca
Busseola fusca · InteractorLEMAUX Yves · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e1

“application of extracts of fruits of chinaberry (Melia azedarach L.), endod ( Phytolacca dodecandra L.) and pepper tree (Schinus molle L.) significantly reduced the levels of leaf infestation and deadheart injury due to larvae of the maize stalk borer, Busseola fusca (Fuller), and resulted in increases in crop yield”

✓ located verbatim in the source · abstract, characters 48–365 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pepper tree (Schinus molle) fruit extract significantly reduced leaf infestation and deadheart injury caused by maize stalk borer larvae.

Taxon
maizeZea mayst0
Treatment
pepper tree (Schinus molle L.)e1
Interactor
Busseola fuscaBusseola fuscae1pest
Outcome
levels of leaf infestation and deadheart injurye1
Direction
reducede1
Setting
Southern Ethiopiat0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Busseola fusca
Busseola fusca · InteractorLEMAUX Yves · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e1

“application of extracts of fruits of chinaberry (Melia azedarach L.), endod ( Phytolacca dodecandra L.) and pepper tree (Schinus molle L.) significantly reduced the levels of leaf infestation and deadheart injury due to larvae of the maize stalk borer, Busseola fusca (Fuller), and resulted in increases in crop yield”

✓ located verbatim in the source · abstract, characters 48–365 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Application of the botanical extracts resulted in increased maize crop yield.

Taxon
maizeZea mayst0
Treatment
application of extractse1
Outcome
crop yielde1
Direction
increasese1
Setting
Southern Ethiopiat0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e1

“application of extracts of fruits of chinaberry (Melia azedarach L.), endod ( Phytolacca dodecandra L.) and pepper tree (Schinus molle L.) significantly reduced the levels of leaf infestation and deadheart injury due to larvae of the maize stalk borer, Busseola fusca (Fuller), and resulted in increases in crop yield”

✓ located verbatim in the source · abstract, characters 48–365 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Extracts of chinaberry leaves and fruits, fresh or dried, reduced the number of larvae.

Taxon
maizeZea mayst0
Treatment
Extracts of both leaves and fruits of chinaberry (either fresh or dried)e2
Outcome
number of larvaee2
Direction
reducinge2

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e2

“Extracts of both leaves and fruits of chinaberry (either fresh or dried) were effective in reducing the number of larvae”

✓ located verbatim in the source · abstract, characters 502–622 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

All chinaberry extract rates significantly reduced the number of larvae below the untreated controls.

Taxon
maizeZea mayst0
Treatment
All the rates usede3
Outcome
number of larvaee3
Direction
reducede3
Comparator
untreated controlse3

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e3

“All the rates used significantly reduced the number of larvae below those in the untreated controls”

✓ located verbatim in the source · abstract, characters 624–723 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fresh endod leaves and fruits were effective against Busseola fusca.

Taxon
maizeZea mayst0
Treatment
Fresh leaves and fruits of endode4
Interactor
B. fuscaBusseola fuscae4pest
Outcome
effective against B. fuscae4
Direction
effectivee4

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Busseola fusca
Busseola fusca · InteractorLEMAUX Yves · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e4

“Fresh leaves and fruits of endod were also effective against B. fusca”

✓ located verbatim in the source · abstract, characters 725–794 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pepper tree fruits were superior to leaves.

Taxon
maizeZea mayst0
Treatment
Fruits of pepper treee5
Outcome
superiore5
Direction
superiore5
Comparator
leavese5

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e5

“Fruits of pepper tree were superior to leaves”

✓ located verbatim in the source · abstract, characters 796–841 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Fresh leaves of the pepper tree did not reduce the number of larvae.

Taxon
maizeZea mayst0
Treatment
Fresh leaves of this plante6
Outcome
number oflarvaee6
Direction
did not reducee6

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e6

“Fresh leaves of this plant did not reduce the number oflarvae”

✓ located verbatim in the source · abstract, characters 843–904 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Two applications of any of the three botanicals were not sufficient to give complete protection of maize against second generation larvae.

Taxon
maizeZea mayse7
Treatment
Two applications of any of the three botanicalse7
Outcome
complete protection of maizee7
Direction
not sufficiente7

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e7

“Two applications of any of the three botanicals were not sufficient to provide complete protection of maize against second generation larvae”

✓ located verbatim in the source · abstract, characters 906–1046 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

More than two applications of the extracts would be needed, because the botanicals have only brief persistence.

Taxon
maizeZea mayst0
Outcome
more than two applications of the extractse5

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“against the maize stalk borer (Lepidoptera: Noctuidae) in Southern Ethiopia”

✓ located verbatim in the source · title, characters 59–134 · show in text ↑
e5

“This suggests that these botanicals have only brief persistence, and more than two applications of the extracts would be necessary to reduce part numbers”

✓ located verbatim in the source · abstract, characters 1048–1201 · show in text ↑

botanical · yield · Zea mays (maize)Results differ

125 papers: 118 positive, 7 negative or no effect

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botanical · control · Zea mays (maize)Positive and negative results

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processing · pest · Zea mays (maize)Positive and negative results

16 papers: 13 positive, 3 negative or no effect

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botanical · pest · Zea mays (maize)Positive and negative results

90 papers: 78 positive, 12 negative or no effect

77 papers in the same direction as this paper · 12 in the opposite direction

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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.