Paper · 2015 · International Journal of Pest Management

Trap cropping with Napier grass,Pennisetum purpureum(Schumach), decreases damage by maize stem borers

Johnnie Van den Berg; Huib Van Hamburg

3
claims
6
verbatim quotes
18
citations
2
research areas
—
Not open access

Abstract

Napier grass, Pennisetum purpureum (Schumach), in combination with intercrops has been used successfully in habitat management for maize stem borers in Africa. The use of Napier grass only as a trap or barrier plant for Chilo partellus (Lepidoptera: Crambidae) and Busseola fusca (Fuller) (Lepidoptera: Noctuidae) was evaluated in this study. Napier grass borders were planted only on two sides of small-scale farmers’ maize fields, since planting of perennial trap crops on all sides of fields hampered mechanical cultivation. C. partellus was the dominant borer species, followed by B. fusca and Sesamia calamistis (Hampson) (Lepidoptera: Noctuidae). Reductions between 0% and 27.4% in the incidence of borer-infested plants were observed on the 16 farms evaluated in this study. The results show that Napier grass as trap/barrier crop suppresses stem borer numbers in maize fields.

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Claims 3

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Reductions between 0% and 27.4% in borer-infested maize plants were observed on 16 farms with Napier grass borders.

Taxon
maizeZea mayse0
Treatment
Napier grass borderse0
Interactor
stem borerst0pest
Outcome
incidence of borer-infested plantse1
Direction
Reductionse1
Value
0% and 27.4%e1
Setting
16 farmse1

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

“decreases damage by maize stem borers”

✓ located verbatim in the source · title, characters 64–101 · show in text ↑
e0

“Napier grass borders were planted only on two sides of small-scale farmers’ maize fields”

✓ located verbatim in the source · abstract, characters 343–431 · show in text ↑
e1

“Reductions between 0% and 27.4% in the incidence of borer-infested plants were observed on the 16 farms evaluated in this study”

✓ located verbatim in the source · abstract, characters 653–780 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Napier grass as trap or barrier crop suppresses stem borer numbers in maize fields.

Taxon
maizeZea mayse2
Treatment
Napier grass as trap/barrier crope2
Interactor
stem borere2pest
Outcome
stem borer numberse2
Direction
suppressese2

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

e2

“Napier grass as trap/barrier crop suppresses stem borer numbers in maize fields”

✓ located verbatim in the source · abstract, characters 804–883 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Chilo partellus was the dominant borer species on maize, followed by Busseola fusca and Sesamia calamistis.

Taxon
maizeZea mayst0
Interactor
C. partellusChilo partelluse3pest
Second interactor
B. fuscaBusseola fuscae3pest
Outcome
dominant borer speciese3

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 ↗
Chilo partellus
Chilo partellus · InteractorKomal et al. (2021) · CC BY 4.0 · Wikimedia Commons ↗
Busseola fusca
Busseola fusca · Second interactorLEMAUX Yves · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“decreases damage by maize stem borers”

✓ located verbatim in the source · title, characters 64–101 · show in text ↑
e3

“C. partellus was the dominant borer species, followed by B. fusca and Sesamia calamistis”

✓ located verbatim in the source · abstract, characters 528–616 · show in text ↑

Cenchrus purpureus · disease · Zea mays (maize)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Cenchrus purpureus · pest · Zea mays (maize)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

trap barrier · pest · Zea mays (maize)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

4 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

3 papers more in this group

See all 7 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.