Intervention effectmodel-written summary

Leaf powder at 5% caused 26% mortality of S. zeamais after 96 h.

A claim from Comparative efficacy of root, bark and leaf powders of Dracaena arborea for the control of two storage insect pests · 2011

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Leaf powder at 5% caused 26% mortality of S. zeamais after 96 h.

Taxon
maizeZea mayse1
Treatment
leaf powder at 5% concentratione0
Interactor
S. zeamaisSitophilus zeamaise0pest
Outcome
mortalitye0
Value
26%e0
Qualifier
after 96 h of exposuree0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingDirection

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 ↗
Sitophilus zeamais
Sitophilus zeamais · InteractorThis image was released by the Agricultural Research Service , the research agency of the United States Department of Agriculture , with the ID k3980-17 (next) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The leaf powder at 5% concentration recorded a significant (P < 0.05) mortality of 26% against S. zeamais and 83% mortality against C. maculatus after 96 h of exposure”

✓ located verbatim in the source · abstract, characters 538–705
e1

“stored maize and cowpea grains, respectively”

✓ located verbatim in the source · abstract, characters 188–232

Title

Comparative efficacy of root, bark and leaf powders of Dracaena arborea for the control of two storage insect pests

I. O. Udo; T. T. Epidi; J.A. Osakwe Scientific Research and Essays 2011. doi:10.5897/sre09.266

Other claims from this paper (5)

Record rev-e334566a2f89c096952b07ce5a348672b415f769634b9310f4d9d5852a9e2ecb · schema claims-v0.9 · position 2 in the model’s answer

botanical · Sitophilus zeamais · Zea mays (maize)Positive and negative results

117 papers: 113 positive, 4 negative or no effect

112 papers in the same direction as this claim · 4 in the opposite direction

  1. positive
    Highest essential-oil dose killed 35% of weevils.

    Evaluation of Ocimum kenyense (Ayobangira) as source of repellents, toxicants and protectants in storage against three major stored product insect pests · 1997

    Same directionCited by this paper

  2. negative
    The ethyl acetate extract at 2% gave the lowest weevil mortality rate of 26%.

    Insecticidal activity of Lantana camara extract oil on controlling maize grain weevils · 2020

    Opposite direction

  3. negative
    Neem peel extract attracted the stored corn pest, with RI 1.1.

    Leaves, stems and seeds powder of neem (Azadirachta indica A. Juss.) used as repellent of Sitophilus zeamais (Coleoptera: Curculionidae) in stored corn · 2010

    Opposite direction

  4. no effect
    Cypress leaf powder caused no significant mortality of maize weevils.

    Bioactivity of cypress leaf powder (Cupressus macrocarpa) on cowpea weevil (Callosobruchus maculatus Fabr. Coleoptera: Bruchidae) and maize weevil (Sitophilus zeamais Motschulsky, Coleoptera: Curculionidae) in stored maize grains in Cameroon · 2015 · compared with controlled

    Opposite direction

  5. no effect
    Crude liquid extract of Jatropha curcas seeds did not significantly change grain damage (exit holes) of maize compared with the control.

    The Effect of Seed Extracts of Physic Nut (Jatropha Curcas L.) on Some Quality Parameters of Stored Maize Grains (Zea Mays L.) · 2016 · compared with control

    Opposite direction

  6. positive
    D. tripetela powder was more effective than three other powders for complete adult Sitophilus zeamais mortality.

    The efficacy of four seed powders and the essential oils as protectants of cowpea and maize grains against infestation byCallosobruchus maculatus(Fabricus) (Coleoptera: Bruchidae) andSitophilus zeamais(Motschulsky) (Coleoptera: Curculionidae) in Nigeria · 1996 · compared with P. guineense, M. myristica and X. aethiopica

    Same direction

  7. positive
    Botanical treatments reduced maize weevil damage by 25%.

    Effect of Insecticidal Plant Materials, Lantana camara L. and Tephrosia vogelii Hook, on the Quality Parameters of Stored Maize Grains · 2004

    Same direction

  8. positive
    Oil-treated grains had significantly fewer surviving-weevil progeny.

    Essential oil of Ocimum grattissimum (Labiatae) as Sitophilus zeamais (Coleoptera: Curculionidae) protectant · 2008

    Same direction

108 papers more in this group

See all 117 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.