Abstract
A laboratory study with the objective of investigating the effects of neem leaf and seed powder against maize weevil was conducted at Ziway Soil Research Centre of Ethiopia. The study had one factor neem seed powder at rates of 1, 2 and 3% w/w and control and another factor of neem leaf powder at rates of 1, 2 and 3% w/w and control. The treatments were arranged in CRD with three replications. Data were collected on dead adult weevils only. The dead adult weevils were counted within 10, 30 and 45 days after the infested maize was treated by neem seed powder and leaf powder. The collected data were subjected to one way ANOVA using the General Linear Model (GLM) procedures of SAS. Results showed that there were significant differences (p<0.5) in the mean percent mortality of S. zeamais among the different concentration of leaf and seed powder with time of storage. The highest mean mortality percent were recorded at the 3% w/w concentration. The 1, 2 and 3% w/w concentration rates of neem seed powder killed about 63.30, 70.72 and 82% of adult weevils, respectively throughout the storage period. Whereas the leaf powder treatment killed 61.13, 68.76 and 77.75% adult weevils respectively. It is concluded that the application 3% w/w of both neem seed and leaf powder are effective in the control of maize weevil and could be used as an alternative control option in integrated stored pest management strategies by small scale farmers.
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Claims 9
Claim · model-written summary
Maize weevil mortality differed significantly among neem powder concentrations over storage time.
- Treatment
- different concentration of leaf and seed powdere0
- Interactor
- S. zeamais
Sitophilus zeamaise0pest - Outcome
- mean percent mortality of S. zeamaise0
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences (p<0.5) in the mean percent mortality of S. zeamais among the different concentration of leaf and seed powder with time of storage”
e1“infested maize was treated by neem seed powder and leaf powder”
Claim · model-written summary
The 3% w/w neem powder concentration gave the highest mean weevil mortality.
- Treatment
- 3% w/w concentratione0
- Interactor
- maize weevilSitophilus zeamaise1pest
- Outcome
- mean mortality percente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean mortality percent were recorded at the 3% w/w concentration”
e1“neem leaf and seed powder against maize weevil”
e2“infested maize was treated by neem seed powder and leaf powder”
Claim · model-written summary
1 neem seed powder killed 63.30 of adult maize weevils.
- Treatment
- 1e0
- Interactor
- Sitophilus zeamaisSitophilus zeamaist0pest
- Outcome
- adult weevilse0
- Direction
- killede0
- Value
- 63.30e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 1, 2 and 3% w/w concentration rates of neem seed powder killed about 63.30, 70.72 and 82% of adult weevils, respectively throughout the storage period”
e1“infested maize was treated by neem seed powder and leaf powder”
t0“MaizeWeevil (Sitophilus zeamais Motschulsky)”
Claim · model-written summary
2 neem seed powder killed 70.72 of adult maize weevils.
- Treatment
- 2e0
- Interactor
- Sitophilus zeamaisSitophilus zeamaist0pest
- Outcome
- adult weevilse0
- Direction
- killede0
- Value
- 70.72e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 1, 2 and 3% w/w concentration rates of neem seed powder killed about 63.30, 70.72 and 82% of adult weevils, respectively throughout the storage period”
e1“infested maize was treated by neem seed powder and leaf powder”
t0“MaizeWeevil (Sitophilus zeamais Motschulsky)”
Claim · model-written summary
3% w/w neem seed powder killed 82% of adult maize weevils.
- Treatment
- 3% w/we0
- Interactor
- Sitophilus zeamaisSitophilus zeamaist0pest
- Outcome
- adult weevilse0
- Direction
- killede0
- Value
- 82%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 1, 2 and 3% w/w concentration rates of neem seed powder killed about 63.30, 70.72 and 82% of adult weevils, respectively throughout the storage period”
e1“infested maize was treated by neem seed powder and leaf powder”
t0“MaizeWeevil (Sitophilus zeamais Motschulsky)”
Claim · model-written summary
Neem leaf powder killed 61.13 of adult maize weevils at 1 concentration.
- Treatment
- leaf powdere0
- Interactor
- Sitophilus zeamaisSitophilus zeamaist0pest
- Outcome
- adult weevilse0
- Direction
- killede0
- Value
- 61.13e0
- Qualifier
- 1e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whereas the leaf powder treatment killed 61.13, 68.76 and 77.75% adult weevils respectively”
e1“neem leaf powder at rates of 1, 2 and 3% w/w and control”
e2“infested maize was treated by neem seed powder and leaf powder”
t0“MaizeWeevil (Sitophilus zeamais Motschulsky)”
Claim · model-written summary
Neem leaf powder killed 68.76 of adult maize weevils at 2 concentration.
- Treatment
- leaf powdere0
- Interactor
- Sitophilus zeamaisSitophilus zeamaist0pest
- Outcome
- adult weevilse0
- Direction
- killede0
- Value
- 68.76e0
- Qualifier
- 2e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whereas the leaf powder treatment killed 61.13, 68.76 and 77.75% adult weevils respectively”
e1“neem leaf powder at rates of 1, 2 and 3% w/w and control”
e2“infested maize was treated by neem seed powder and leaf powder”
t0“MaizeWeevil (Sitophilus zeamais Motschulsky)”
Claim · model-written summary
Neem leaf powder killed 77.75% of adult maize weevils at 3% w/w concentration.
- Treatment
- leaf powdere0
- Interactor
- Sitophilus zeamaisSitophilus zeamaist0pest
- Outcome
- adult weevilse0
- Direction
- killede0
- Value
- 77.75%e0
- Qualifier
- 3% w/we1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whereas the leaf powder treatment killed 61.13, 68.76 and 77.75% adult weevils respectively”
e1“neem leaf powder at rates of 1, 2 and 3% w/w and control”
e2“infested maize was treated by neem seed powder and leaf powder”
t0“MaizeWeevil (Sitophilus zeamais Motschulsky)”
Claim · model-written summary
The authors recommend 3% w/w neem seed and leaf powder as an alternative for maize weevil control.
- Treatment
- 3% w/w of both neem seed and leaf powdere0
- Interactor
- maize weevilSitophilus zeamaise0pest
- Outcome
- alternative control option in integrated stored pest management strategiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application 3% w/w of both neem seed and leaf powder are effective in the control of maize weevil and could be used as an alternative control option in integrated stored pest management strategies by small scale farmers”
The same questions in other papers
botanical · Sitophilus zeamais · Zea mays (maize)Positive and negative results
112 papers in the same direction as this paper · 4 in the opposite direction
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