Abstract
This study was conducted to investigate the potential of Aframomum melegueta leaf and seed as biopesticide against Sitotroga cerealella infestation on two paddy varieties at ambient temperature of 28 °C ± 2 °C and relative humidity of 75 ± 5%. The two paddy varieties used were FARO 44 and FARO 52. Leaf and seed powders of A. melegueta were made at 0.1, 0.2, 0.4, 0.6 and 0.8 g while the extracts were made at 1, 2, 3, 4 and 5%. Mortality of the insect on the two paddy varieties was record after 24, 48 and 72 h of application of the powders and extracts of this plant. The highest number of the insect was observed on FARO 52 treated with seed powders and extracts of A. melegueta. Only the seed extracts were able to achieve 100% moth mortality within 72 h of application at 4% concentration and were significantly (p < 0.05) different from others. The powders and extracts of the plant significantly reduced or prevented the adult emergence of the insect and increased their developmental period as well reduced or prevented seed weight loss with seed powders and extracts having the greatest effect on the paddy variety FARO 44. The antinutritional components present in the two paddy varieties include phytate, oxalate, total phenol and tannin cyanide, and the amylase content was also determined, with FARO 44 having the highest value of 17.31, 0.18, 0.43, 10.46 and 5.49 for phytate, oxalate, tannin, cyanide and amylase content, respectively. Powders and extracts of A. melegueta could be introduced into pest management techniques since they are effective against S. cerealella.
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Claims 11
Claim · model-written summary
The highest insect number occurred on FARO 52 treated with Aframomum seed preparations.
Verbatim
e0“The highest number of the insect was observed on FARO 52 treated with seed powders and extracts of A. melegueta.”
Claim · model-written summary
Seed extracts at 4% achieved 100% moth mortality within 72 hours.
- Treatment
- seed extractse0
- Outcome
- moth mortalitye0
- Direction
- achievee0
- Value
- 100%e0
- Qualifier
- within 72 h of application at 4% concentratione0
- Comparator
- otherse0
Not reportedTaxon
Verbatim
e0“Only the seed extracts were able to achieve 100% moth mortality within 72 h of application at 4% concentration and were significantly (p < 0.05) different from others.”
Claim · model-written summary
Aframomum powders and extracts reduced or prevented adult emergence.
- Treatment
- powders and extracts of the plante0
- Outcome
- adult emergence of the insecte0
- Direction
- reduced or preventede0
Not reportedTaxonComparator
Verbatim
e0“The powders and extracts of the plant significantly reduced or prevented the adult emergence of the insect”
Claim · model-written summary
Aframomum powders and extracts increased insect developmental period.
Not reportedTaxonTreatmentComparator
Verbatim
e0“increased their developmental period”
Claim · model-written summary
Aframomum powders and extracts reduced or prevented seed weight loss, most strongly on FARO 44.
- Taxon
- paddye0
- Material
- FARO 44e0
- Treatment
- seed powders and extractse0
- Outcome
- seed weight losse0
- Direction
- reduced or preventede0
Not reportedComparator
Verbatim
e0“reduced or prevented seed weight loss with seed powders and extracts having the greatest effect on the paddy variety FARO 44”
Claim · model-written summary
FARO 44 had the reported highest phytate content of 17.31.
Verbatim
e0“FARO 44 having the highest value of 17.31, 0.18, 0.43, 10.46 and 5.49 for phytate, oxalate, tannin, cyanide and amylase content, respectively.”
Claim · model-written summary
FARO 44 had the reported highest oxalate content of 0.18.
Verbatim
e0“FARO 44 having the highest value of 17.31, 0.18, 0.43, 10.46 and 5.49 for phytate, oxalate, tannin, cyanide and amylase content, respectively.”
Claim · model-written summary
FARO 44 had the reported highest tannin content of 0.43.
Verbatim
e0“FARO 44 having the highest value of 17.31, 0.18, 0.43, 10.46 and 5.49 for phytate, oxalate, tannin, cyanide and amylase content, respectively.”
Claim · model-written summary
FARO 44 had the reported highest cyanide content of 10.46.
Verbatim
e0“FARO 44 having the highest value of 17.31, 0.18, 0.43, 10.46 and 5.49 for phytate, oxalate, tannin, cyanide and amylase content, respectively.”
Claim · model-written summary
FARO 44 had the reported highest amylase content of 5.49.
Verbatim
e0“FARO 44 having the highest value of 17.31, 0.18, 0.43, 10.46 and 5.49 for phytate, oxalate, tannin, cyanide and amylase content, respectively.”
Claim · model-written summary
The authors recommend Aframomum powders and extracts for pest management.
- Taxon
- A. melegueta
Aframomum meleguetae0 - Outcome
- introduced into pest management techniquese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Powders and extracts of A. melegueta could be introduced into pest management techniques since they are effective against S. cerealella.”
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