Abstract
Post-harvest losses in maize stocks are caused by stock predators including Sitophilus zeamais. This work aimed to evaluate the insecticidal and insect repellent effects of orange peel powder and essential oil on this stock pest of maize (Zea mays) in order to contribute to food safety and security. The essential oil and orange peel powder, obtained by hydrodistillation and grinding orange peels respectively, were tested on S. zeamais adults from one generation of laboratory rearing. Experiments were carried out using different doses of powder and oil to study insect repellency and mortality as a function of dose and time. The results of the bioconservative insect repellency tests showed that the powder and essential oil were 100% repellent to S. zeamais within 7 hours and 4 hours, respectively. Moreover, these bioconservatives are potent insecticides, with 95% lethal doses (LD95) of 19.965±0.064 g/kg for the powder and 22.963±0.105 µl/kg for the essential oil. The results obtained indicate that orange peel powder and essential oil can be used to protect maize stocks against S. zeamais.
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Claims 6
Claim · model-written summary
Orange peel powder was 100% repellent to S. zeamais within 7 hours.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the powder and essential oil were 100% repellent to S. zeamais within 7 hours and 4 hours, respectively.”
Claim · model-written summary
Orange peel essential oil was 100% repellent to S. zeamais within 4 hours.
- Taxon
- S. zeamais
Sitophilus zeamaise0 - Treatment
- essential oile0
- Outcome
- repellente0
- Value
- 100%e0
- Qualifier
- 4 hourse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the powder and essential oil were 100% repellent to S. zeamais within 7 hours and 4 hours, respectively.”
Claim · model-written summary
Orange peel powder had an LD95 of 19.965±0.064 g/kg against S. zeamais.
- Taxon
- S. zeamaisSitophilus zeamaise1
- Treatment
- powdere0
- Outcome
- 95% lethal doses (LD95)e0
- Value
- 19.965±0.064 g/kge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with 95% lethal doses (LD95) of 19.965±0.064 g/kg for the powder and 22.963±0.105 µl/kg for the essential oil.”
e1“were tested on S. zeamais adults”
Claim · model-written summary
Orange peel essential oil had an LD95 of 22.963±0.105 µl/kg against S. zeamais.
- Taxon
- S. zeamaisSitophilus zeamaise1
- Treatment
- essential oile0
- Outcome
- 95% lethal doses (LD95)e0
- Value
- 22.963±0.105 µl/kge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with 95% lethal doses (LD95) of 19.965±0.064 g/kg for the powder and 22.963±0.105 µl/kg for the essential oil.”
e1“were tested on S. zeamais adults”
Claim · model-written summary
The authors recommend orange peel powder to protect stored maize against S. zeamais.
- Treatment
- orange peel powdere0
- Interactor
- S. zeamaisSitophilus zeamaise0pest
- Outcome
- protect maize stockse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“orange peel powder and essential oil can be used to protect maize stocks against S. zeamais.”
Claim · model-written summary
The authors recommend orange peel essential oil to protect stored maize against S. zeamais.
- Treatment
- essential oile0
- Interactor
- S. zeamaisSitophilus zeamaise0pest
- Outcome
- protect maize stockse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“orange peel powder and essential oil can be used to protect maize stocks against S. zeamais.”
The same questions in other papers
botanical · pest · Sitophilus zeamais (maize weevil)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.