Abstract
The insecticidal and repellent activities of fruit extracts of Xylopia aethiopica (Dunal) A. Rich. and Dennettia tripetala (Baker f.) G.E. Schatz belonging to the family Annonaceae was studied against Sitophilus oryzae (L.), an economic, primary post-harvest pest of rice, and other cereal products. Infested rice grains (100 g) treated with 1, 2, 3, 4, and 5% (w/w) powders of both plants were evaluated for toxicity against S. oryzae every 24 h for 3 d, and during F1 progeny emergence. The essential oils of both plants were also applied at 0.5, 1, 1.5 and 2 mg cm -2 filter paper in Petri dishes for toxicity bioassays at 24 h exposure. Repellence bioassay with 10 L solution of essential oils on filter paper was performed in a Y-Tube airflow olfactometer. Results indicate that powders of both plants significantly (P < 0.001) caused adult weevil mortality and a reduction in F1 progeny emergence than the control. Essential oils were also significantly (P < 0.001) adulticidal to S. oryzae after 24 h with the highest dose (2 mg cm -2 ) producing 100% mortality respectively. Similarly, both male and female weevils significantly avoided the test arm compared to the control arm in the Y-Tube olfactometer repellence tests. These results suggest that X. aethiopica and D. tripetala natural extracts have potential for use as part of integrated pest management of stored product protection against S. oryzae.
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Claims 6
Claim · model-written summary
Powders of Xylopia aethiopica significantly increased adult rice weevil mortality versus control.
- Taxon
- rice
Oryza sativae0 - Treatment
- powders of both plantse0
- Interactor
- S. oryzae
Sitophilus oryzaee0pest - Outcome
- adult weevil mortalitye1
- Direction
- causede1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infested rice grains (100 g) treated with 1, 2, 3, 4, and 5% (w/w) powders of both plants were evaluated for toxicity against S. oryzae every 24 h for 3 d, and during F1 progeny emergence.”
e1“Results indicate that powders of both plants significantly (P < 0.001) caused adult weevil mortality and a reduction in F1 progeny emergence than the control.”
t0“Fruit Extracts from Xylopia aethiopica and Dennettia tripetala”
Claim · model-written summary
Powders of Dennettia tripetala significantly increased adult rice weevil mortality versus control.
- Taxon
- riceOryza sativae0
- Treatment
- powders of both plantse0
- Interactor
- S. oryzaeSitophilus oryzaee0pest
- Outcome
- adult weevil mortalitye1
- Direction
- causede1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infested rice grains (100 g) treated with 1, 2, 3, 4, and 5% (w/w) powders of both plants were evaluated for toxicity against S. oryzae every 24 h for 3 d, and during F1 progeny emergence.”
e1“Results indicate that powders of both plants significantly (P < 0.001) caused adult weevil mortality and a reduction in F1 progeny emergence than the control.”
Claim · model-written summary
Fruit powders significantly reduced F1 rice weevil progeny emergence versus control.
- Taxon
- riceOryza sativae0
- Treatment
- powders of both plantse0
- Interactor
- S. oryzaeSitophilus oryzaee0pest
- Outcome
- F1 progeny emergencee1
- Direction
- reductione1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infested rice grains (100 g) treated with 1, 2, 3, 4, and 5% (w/w) powders of both plants were evaluated for toxicity against S. oryzae every 24 h for 3 d, and during F1 progeny emergence.”
e1“Results indicate that powders of both plants significantly (P < 0.001) caused adult weevil mortality and a reduction in F1 progeny emergence than the control.”
Claim · model-written summary
Essential oils from both plants significantly killed adult S. oryzae after 24 hours, with 100% mortality at the highest dose.
- Taxon
- riceOryza sativae1
- Treatment
- Essential oilse0
- Interactor
- S. oryzaeSitophilus oryzaee0pest
- Outcome
- mortalitye0
- Direction
- adulticidale0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oils were also significantly (P < 0.001) adulticidal to S. oryzae after 24 h with the highest dose (2 mg cm -2 ) producing 100% mortality respectively.”
t0“Insecticidal Effect of Fruit Extracts from Xylopia aethiopica and Dennettia tripetala (Annonaceae) against Sitophilus oryzae (Coleoptera: Curculionidae)”
e1“The insecticidal and repellent activities of fruit extracts of Xylopia aethiopica (Dunal) A. Rich. and Dennettia tripetala (Baker f.) G.E. Schatz belonging to the family Annonaceae was studied against Sitophilus oryzae (L.), an economic, primary post-harvest pest of rice, and other cereal products.”
Claim · model-written summary
Male S. oryzae significantly avoided the essential-oil test arm versus control.
- Taxon
- riceOryza sativae2
- Treatment
- essential oilse1
- Interactor
- Sitophilus oryzaeSitophilus oryzaet0pest
- Outcome
- male and female weevilse0
- Direction
- avoidede0
- Comparator
- the control arme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similarly, both male and female weevils significantly avoided the test arm compared to the control arm in the Y-Tube olfactometer repellence tests.”
e1“Repellence bioassay with 10 L solution of essential oils on filter paper was performed in a Y-Tube airflow olfactometer.”
e2“post-harvest pest of rice, and other cereal products.”
t0“Insecticidal Effect of Fruit Extracts from Xylopia aethiopica and Dennettia tripetala (Annonaceae) against Sitophilus oryzae (Coleoptera: Curculionidae)”
Claim · model-written summary
The authors propose Xylopia and Dennettia extracts for stored-product pest management against S. oryzae.
- Taxon
- riceOryza sativae1
- Interactor
- S. oryzaeSitophilus oryzaee0pest
- Outcome
- integrated pest management of stored product protectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that X. aethiopica and D. tripetala natural extracts have potential for use as part of integrated pest management of stored product protection against S. oryzae.”
e1“post-harvest pest of rice, and other cereal products.”
The same questions in other papers
botanical · Sitophilus oryzae · Oryza sativa (rice)Positive and negative results
27 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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See all 29 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.