Abstract
Sitophilus zeamais (maize weevil) damages maize, a major cereal crop in Ethiopia. A study was conducted to determine the anti-weevil activities of ethanol extracts of leaves of Juniperus procera, Phytolacca dodecandra, Ostegia integrifolia, Sansevieria trifasciata, and Eucalyptus globulus. Extraction was done using 70% ethanol. Two types of tests (toxicity and efficacy) were conducted using three doses, i.e., 50, 75, and 100 ml/kg of each plant. In the toxicity test, weevil mortality was measured at the 6th, 12th, 24th, 48th, and 72nd hours, then weekly for five weeks. For efficacy test, weevil mortality and grain damage (weight loss, percent holes, and percent germination) were assessed three months after treatment. J. procera and P. dodecandra were more toxic (96.6% and 96.4% mortality rate, respectively). The 50 and 75 ml/kg doses of E. globulus, 75 and 100 ml/kg doses of J. procera, of P. dodecandra, and of S. trifasciata killed 100% of the weevils; in the control mortality was 23.3%. Grain weight loss was high in the control (7.8%) followed by grains treated by 75 ml/kg extracts of O. integrifolia (5.9%). Percentage holes was high in the control (70%) followed by 75 ml/kg extracts of O. integrifolia (26.7%). Germination was high in grains treated with 50 and 75 ml/kg doses of J. procera, E. globulus, S. trifasciata, and P. dodecandra in descending order. The 75 and 100 ml/kg extracts of J. procera, E. globulus, S. trifasciata, and P. dodecandra were good candidates in the control of maize weevils with limitations of allelopathy in the 100 ml/kg. Keywords: Juniperus procera; Maize weevil; Ostegia integrifolia; Phytolacca dodecandra; Sansevieria trifasciata; Sitophilus zeamais.
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 19
Claim · model-written summary
Juniperus procera leaf extract caused 96.6% maize weevil mortality.
- Treatment
- J. procerae0
- Interactor
- Sitophilus zeamais
Sitophilus zeamaise1pest - Outcome
- mortality ratee0
- Direction
- more toxice0
- Value
- 96.6%e0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“J. procera and P. dodecandra were more toxic (96.6% and 96.4% mortality rate, respectively)”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Phytolacca dodecandra leaf extract caused 96.4% maize weevil mortality.
- Treatment
- P. dodecandrae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- mortality ratee0
- Direction
- more toxice0
- Value
- 96.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“J. procera and P. dodecandra were more toxic (96.6% and 96.4% mortality rate, respectively)”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Eucalyptus globulus extract at 50 and 75 ml/kg killed all maize weevils.
- Treatment
- 50 and 75 ml/kg doses of E. globuluse0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- weevilse0
- Direction
- killede0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 50 and 75 ml/kg doses of E. globulus, 75 and 100 ml/kg doses of J. procera, of P. dodecandra, and of S. trifasciata killed 100% of the weevils”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Juniperus procera extract at 75 and 100 ml/kg killed all maize weevils.
- Treatment
- 75 and 100 ml/kg doses of J. procerae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- weevilse0
- Direction
- killede0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75 and 100 ml/kg doses of J. procera, of P. dodecandra, and of S. trifasciata killed 100% of the weevils”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Phytolacca dodecandra extract at 75 and 100 ml/kg killed all maize weevils.
- Treatment
- P. dodecandrae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- weevilse0
- Direction
- killede0
- Value
- 100%e0
- Qualifier
- 75 and 100 ml/kg dosese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75 and 100 ml/kg doses of J. procera, of P. dodecandra, and of S. trifasciata killed 100% of the weevils”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Sansevieria trifasciata extract at 75 and 100 ml/kg killed all maize weevils.
- Treatment
- S. trifasciatae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- weevilse0
- Direction
- killede0
- Value
- 100%e0
- Qualifier
- 75 and 100 ml/kg dosese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75 and 100 ml/kg doses of J. procera, of P. dodecandra, and of S. trifasciata killed 100% of the weevils”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Untreated control maize weevil mortality was 23.3%.
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- mortalitye0
- Value
- 23.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the control mortality was 23.3%”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Untreated control maize grain lost 7.8% weight.
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Grain weight losse0
- Direction
- highe0
- Value
- 7.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain weight loss was high in the control (7.8%)”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Maize grain treated with 75 ml/kg Ostegia integrifolia extract lost 5.9% weight.
- Treatment
- 75 ml/kg extracts of O. integrifoliae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Grain weight losse0
- Value
- 5.9%e0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain weight loss was high in the control (7.8%) followed by grains treated by 75 ml/kg extracts of O. integrifolia (5.9%)”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Seventy percent of control maize grains had holes.
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Percentage holese0
- Direction
- highe0
- Value
- 70%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage holes was high in the control (70%)”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Maize grain treated with 75 ml/kg Ostegia integrifolia extract had 26.7% holes.
- Treatment
- 75 ml/kg extracts of O. integrifoliae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Percentage holese0
- Value
- 26.7%e0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage holes was high in the control (70%) followed by 75 ml/kg extracts of O. integrifolia (26.7%)”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Germination was high in maize grains treated with 50 and 75 ml/kg Juniperus procera extract.
- Treatment
- 50 and 75 ml/kg doses of J. procerae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Germinatione0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was high in grains treated with 50 and 75 ml/kg doses of J. procera, E. globulus, S. trifasciata, and P. dodecandra in descending order”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Germination was high in maize grains treated with 50 and 75 ml/kg Eucalyptus globulus extract.
- Treatment
- E. globuluse0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Germinatione0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was high in grains treated with 50 and 75 ml/kg doses of J. procera, E. globulus, S. trifasciata, and P. dodecandra in descending order”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Germination was high in maize grains treated with 50 and 75 ml/kg Sansevieria trifasciata extract.
- Treatment
- S. trifasciatae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Germinatione0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was high in grains treated with 50 and 75 ml/kg doses of J. procera, E. globulus, S. trifasciata, and P. dodecandra in descending order”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
Germination was high in maize grains treated with 50 and 75 ml/kg Phytolacca dodecandra extract.
- Treatment
- P. dodecandrae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- Germinatione0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was high in grains treated with 50 and 75 ml/kg doses of J. procera, E. globulus, S. trifasciata, and P. dodecandra in descending order”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
The authors recommend 75 and 100 ml/kg Juniperus procera extract for maize weevil control, noting allelopathy at 100 ml/kg.
- Treatment
- 75 and 100 ml/kg extracts of J. procerae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- good candidates in the control of maize weevilse0
- Qualifier
- limitations of allelopathy in the 100 ml/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 75 and 100 ml/kg extracts of J. procera, E. globulus, S. trifasciata, and P. dodecandra were good candidates in the control of maize weevils with limitations of allelopathy in the 100 ml/kg”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
The authors recommend 75 and 100 ml/kg Eucalyptus globulus extract for maize weevil control, noting allelopathy at 100 ml/kg.
- Treatment
- E. globuluse0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- good candidates in the control of maize weevilse0
- Qualifier
- limitations of allelopathy in the 100 ml/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 75 and 100 ml/kg extracts of J. procera, E. globulus, S. trifasciata, and P. dodecandra were good candidates in the control of maize weevils with limitations of allelopathy in the 100 ml/kg”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
The authors recommend 75 and 100 ml/kg Sansevieria trifasciata extract for maize weevil control, noting allelopathy at 100 ml/kg.
- Treatment
- S. trifasciatae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- good candidates in the control of maize weevilse0
- Qualifier
- limitations of allelopathy in the 100 ml/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 75 and 100 ml/kg extracts of J. procera, E. globulus, S. trifasciata, and P. dodecandra were good candidates in the control of maize weevils with limitations of allelopathy in the 100 ml/kg”
e1“Sitophilus zeamais (maize weevil) damages maize”
Claim · model-written summary
The authors recommend 75 and 100 ml/kg Phytolacca dodecandra extract for maize weevil control, noting allelopathy at 100 ml/kg.
- Treatment
- P. dodecandrae0
- Interactor
- Sitophilus zeamaisSitophilus zeamaise1pest
- Outcome
- good candidates in the control of maize weevilse0
- Qualifier
- limitations of allelopathy in the 100 ml/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 75 and 100 ml/kg extracts of J. procera, E. globulus, S. trifasciata, and P. dodecandra were good candidates in the control of maize weevils with limitations of allelopathy in the 100 ml/kg”
e1“Sitophilus zeamais (maize weevil) damages maize”
The same questions in other papers
Eucalyptus globulus · Sitophilus zeamais · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
Phytolacca dodecandra · Sitophilus zeamais · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
botanical · Sitophilus zeamais · Zea mays (maize)Positive and negative results
112 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- negative
113 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.