Abstract
Crops in the Family Malvaceae are attacked by various insect pests especially Podagria species (Coleoptera: Chrysomelidae) at different stages of their development. The emergence of biodegradable pesticides (botanicals) as safe option has reduced the problems that result from the use of synthetic insecticides, thus creating a renewed interest in their development and use in integrated pest management of crops. Therefore, field experiments were conducted to investigate the control capability of water extracts of Piper guineense seeds and Cypermethrin on flea beetles (Podagrica spp.) infesting okra (Abelmoschus esculentus (L.) Moench). The experiments were conducted in two locations in the rain forest zone of Nigeria. The first experiment was conducted at the Teaching and Research Farm of The Federal University of Technology Akure, Ondo State (2011 Early cropping season), while the second experiment was carried out at the Teaching and Research Farm of Rufus Giwa Polytechnic, Owo, Ondo State (2011 Late cropping season). A synthetic insecticide (Cypermethrin) was included in the treatments as a standard check alongside the untreated (control). The experimental design was laid out in a randomised complete block design with five treatments replicated three times. The effectiveness of the treatments was determined based on reduction in the population of the adult insects. The results showed that water extract of P. guineense seeds and the synthetic insecticide significantly (p < 0.05) reduced the population of the flea beetles as compared with the control. The synthetic insecticide-treated plots produced the highest standard check, but this was not significantly different from the dried yield recorded in the plots sprayed with aqueous extracts of P. guineense seeds. The results of field trials in both cropping seasons showed that all the treatments significantly suppressed the infestation by the flea beetles throughout the study period. In view of the ability of water extract of P. guineense seeds to control the infestation of Podagrica spp. its use by farmers is therefore recommended.
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Claims 5
Claim · model-written summary
Piper guineense seed extract significantly reduced flea beetle population versus untreated control.
- Taxon
- okra
.jpg?width=60)
Abelmoschus esculentuse1 - Treatment
- water extract of P. guineense seedse0
- Outcome
- population of the flea beetlese0
- Direction
- reducede0
- Comparator
- controle0
PodagricaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“water extract of P. guineense seeds and the synthetic insecticide significantly (p < 0.05) reduced the population of the flea beetles as compared with the control”
e1“flea beetles (Podagrica spp.) infesting okra (Abelmoschus esculentus (L.) Moench)”
Claim · model-written summary
Cypermethrin significantly reduced flea beetle population versus untreated control.
- Taxon
- okraAbelmoschus esculentuse2
- Treatment
- Cypermethrine1
- Outcome
- population of the flea beetlese0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extract of P. guineense seeds and the synthetic insecticide significantly (p < 0.05) reduced the population of the flea beetles as compared with the control”
e1“A synthetic insecticide (Cypermethrin) was included”
e2“flea beetles (Podagrica spp.) infesting okra”
Claim · model-written summary
Dried okra yield under seed extract did not significantly differ from synthetic insecticide plots.
- Taxon
- okraAbelmoschus esculentuse1
- Treatment
- aqueous extracts of P. guineense seedse0
- Outcome
- dried yielde0
- Comparator
- synthetic insecticide-treated plotse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The synthetic insecticide-treated plots produced the highest standard check, but this was not significantly different from the dried yield recorded in the plots sprayed with aqueous extracts of P. guineense seeds.”
e1“infesting okra”
Claim · model-written summary
Field treatments significantly suppressed flea beetle infestation in both seasons.
- Taxon
- okraAbelmoschus esculentuse2
- Treatment
- all the treatmentse0
- Outcome
- infestation by the flea beetlese0
- Direction
- suppressede0
- Comparator
- untreated (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field trials in both cropping seasons showed that all the treatments significantly suppressed the infestation by the flea beetles throughout the study period”
e1“untreated (control)”
e2“flea beetles (Podagrica spp.) infesting okra”
Claim · model-written summary
The authors recommend water extract of P. guineense seeds to control Podagrica infestation.
- Taxon
- okraAbelmoschus esculentuse1
- Outcome
- its use by farmers is therefore recommendede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extract of P. guineense seeds to control the infestation of Podagrica spp. its use by farmers is therefore recommended”
e1“infesting okra”
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botanical · yield · Abelmoschus esculentus (okra)Results differ
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See all 6 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.