Abstract
Abstract Seed powders and the essential oils of Dennettia tripetela Baker F., Piper guineense Schum and Thonn, Mondora myristica (Gaerth) Dunal and Xylopia aethiopica Dunal A. Rich were evaluated for their effectiveness in protecting cowpea and maize grains during storage. D. tripetela powder mixed with maize grains, at 1.5 g per 25 g was significantly more effective (P < 0.05) than P. guineense, M. myristica and X. aethiopica in achieving 100% mortality of adults of Sitophilus zeamais in 24 h, and was also as effective as pirimiphosmethyl (10 ppm) in achieving 100% mortality of adult weevil in 24 h, 3 months after treatment at a dose of 3g per 25 g. There was no F1 emergence except in grains treated with M. myristica, X. aethiopica and the untreated controls. Essential oils of D. tripetela and P. guineense achieved 100% mortality of adults of Callosobruchus maculatus and Sitophilus zeamais in 24 h. Except in cowpea treated with X. aethiopica cowpea and maize grains treated with seed oils suppressed the emergence of F1 offspring and gave protection for up to 4 months of storage. However, cowpea and maize grains treated with oils, and maize grains treated with seed powders of M. myristica changed colour from white to orange. Keywords: storage pestsefficacy mortalitydamageDennettia
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Claims 9
Claim · model-written summary
D. tripetela powder was more effective than three other powders for complete adult Sitophilus zeamais mortality.
- Treatment
- D. tripetela powder mixed with maize grains, at 1.5 g per 25 ge0
- Interactor
- Sitophilus zeamais
Sitophilus zeamaise0pest - Outcome
- mortality of adults of Sitophilus zeamaise0
- Direction
- more effectivee0
- Value
- 100%e0
- Comparator
- P. guineense, M. myristica and X. aethiopicae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. tripetela powder mixed with maize grains, at 1.5 g per 25 g was significantly more effective (P < 0.05) than P. guineense, M. myristica and X. aethiopica in achieving 100% mortality of adults of Sitophilus zeamais in 24 h”
Claim · model-written summary
D. tripetela powder matched pirimiphosmethyl for complete adult weevil mortality after storage.
- Treatment
- D. tripetela powdere1
- Interactor
- weevile0pest
- Outcome
- mortality of adult weevile0
- Direction
- as effectivee0
- Value
- 100%e0
- Qualifier
- 3 months after treatment at a dose of 3g per 25 ge0
- Comparator
- pirimiphosmethyl (10 ppm)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was also as effective as pirimiphosmethyl (10 ppm) in achieving 100% mortality of adult weevil in 24 h, 3 months after treatment at a dose of 3g per 25 g”
e1“D. tripetela powder mixed with maize grains”
Claim · model-written summary
No F1 offspring emerged except under M. myristica, X. aethiopica, and untreated controls.
- Taxon
- cowpea and maize grains
Vigna unguiculata
Zea mayse1 - Outcome
- no F1 emergencee0
- Qualifier
- except in grains treated with M. myristica, X. aethiopica and the untreated controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no F1 emergence except in grains treated with M. myristica, X. aethiopica and the untreated controls”
e1“protecting cowpea and maize grains during storage”
Claim · model-written summary
D. tripetela oil caused complete mortality of both named pest species in 24 hours.
- Taxon
- cowpea and maize grainsVigna unguiculataZea mayse1
- Treatment
- D. tripetelae0
- Interactor
- Callosobruchus maculatus
Callosobruchus maculatuse0pest - Second interactor
- Sitophilus zeamaisSitophilus zeamaise0pest
- Outcome
- mortality of adultse0
- Value
- 100%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oils of D. tripetela and P. guineense achieved 100% mortality of adults of Callosobruchus maculatus and Sitophilus zeamais in 24 h”
e1“protecting cowpea and maize grains during storage”
Claim · model-written summary
P. guineense oil caused complete mortality of both named pest species in 24 hours.
- Taxon
- cowpea and maize grainsVigna unguiculataZea mayse1
- Treatment
- P. guineensee0
- Interactor
- Callosobruchus maculatusCallosobruchus maculatuse0pest
- Second interactor
- Sitophilus zeamaisSitophilus zeamaise0pest
- Outcome
- mortality of adultse0
- Value
- 100%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oils of D. tripetela and P. guineense achieved 100% mortality of adults of Callosobruchus maculatus and Sitophilus zeamais in 24 h”
e1“protecting cowpea and maize grains during storage”
Claim · model-written summary
Seed oils suppressed F1 offspring in cowpea and maize grain except cowpea treated with X. aethiopica, protecting storage for up to four months.
- Taxon
- cowpea and maize grainsVigna unguiculataZea mayse0
- Treatment
- seed oilse0
- Outcome
- emergence of F1 offspringe0
- Direction
- suppressede0
- Value
- up to 4 monthse0
- Qualifier
- Except in cowpea treated with X. aethiopicae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except in cowpea treated with X. aethiopica cowpea and maize grains treated with seed oils suppressed the emergence of F1 offspring and gave protection for up to 4 months of storage”
Claim · model-written summary
Oils changed cowpea grain color from white to orange.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- oilse0
- Outcome
- coloure0
- Direction
- changede0
- Qualifier
- from white to orangee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea and maize grains treated with oils, and maize grains treated with seed powders of M. myristica changed colour from white to orange”
Claim · model-written summary
Oils changed maize grain color from white to orange.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea and maize grains treated with oils, and maize grains treated with seed powders of M. myristica changed colour from white to orange”
Claim · model-written summary
M. myristica seed powder changed maize grain color from white to orange.
- Treatment
- seed powders of M. myristicae0
- Outcome
- coloure0
- Direction
- changede0
- Qualifier
- from white to orangee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize grains treated with seed powders of M. myristica changed colour from white to orange”
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