Paper · 2002 · Journal of Orthoptera Research

The effects of various host plants on nymphal development and egg production in Oedaleus nigeriensis Uvarov (Orthoptera: Acrididae)

A. N. Nzekwu; A. E. Akingbohungbe

2
claims
6
verbatim quotes
9
citations
2
research areas
✓
Open access

Abstract

O. nigeriensis Uvarov is widely distributed in the moist grassland habitats of Nigeria. Although this area is used for intensive agricultural activities, providing more than 90% of the grains needed in the country, the insect has been reported to cause only minor damage to agricultural crops while the closely related O. senegalensis is a serious pest of crops. The reason for the minor pest status of O. nigeriensis is unknown and only adequate study of the insect/host-plant relationship will provide some clues.Nymphs and adults of O. nigeriensis were reared on selected food plants (grasses) in the laboratory, this included Axonopus compressus, Cynodon dactylon, Eleusine indica, Seteria gracilipes, used singly and as a mixture of all four. Development of the nymphs was shortest when rearing was on a mixed diet: 60 d compared to 105 to 127 d for single host plants. Rearing the adults on S. gracilipes promoted faster oocyte development than the other treatments. The present pest status of the insect is discussed based on the data obtained.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 2

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Oedaleus nigeriensis nymphs developed fastest on a mixture of four host grasses, taking 60 d versus 105 to 127 d on single host plants.

Taxon
Axonopus compressus, Cynodon dactylon, Eleusine indica, Seteria gracilipese1
Treatment
mixed diete0
Interactor
O. nigeriensise2herbivore
Outcome
Development of the nymphse0
Direction
shorteste0
Value
60 de0
Qualifier
105 to 127 de0
Comparator
single host plantse0

Verbatim

e0

“Development of the nymphs was shortest when rearing was on a mixed diet: 60 d compared to 105 to 127 d for single host plants.”

✓ located verbatim in the source · abstract, characters 748–874 · show in text ↑
e1

“Axonopus compressus, Cynodon dactylon, Eleusine indica, Seteria gracilipes”

✓ located verbatim in the source · abstract, characters 630–704 · show in text ↑
e2

“O. nigeriensis were reared on selected food plants”

✓ located verbatim in the source · abstract, characters 536–586 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

S. gracilipes promoted faster Oedaleus nigeriensis oocyte development than other food plants.

Taxon
S. gracilipese0
Treatment
S. gracilipese0
Interactor
O. nigeriensise1herbivore
Outcome
oocyte developmente0
Direction
fastere0
Comparator
other treatmentse0

Verbatim

e0

“Rearing the adults on S. gracilipes promoted faster oocyte development than the other treatments.”

✓ located verbatim in the source · abstract, characters 875–972 · show in text ↑
e1

“O. nigeriensis were reared on selected food plants”

✓ located verbatim in the source · abstract, characters 536–586 · show in text ↑
e2

“Seteria gracilipes”

✓ located verbatim in the source · abstract, characters 686–704 · show in text ↑