Abstract
Bioassays of Barringtonia sarcostachys (Lecythidaceae) bark ethanol extract were conducted in the laboratory to evaluate the effect on mortality, feeding, oviposition, and reproduction against Crocidolomia pavonana (Lepidoptera: Pyralidae). Bioassay tests was performed from March – October 2007 using leaf:residual feeding method. The bark extract of B. sarcostachys possessed a strong lethal effect against C. pavonana larvae with LC 50 of 0.14% which is equivalent to the lethal effect of neem seed extract with LC 50 of 0.18%. Extracts (0.8%:0.24%) inhibited feeding C. pavonana larvae by as much as 68.79%:99.1%. In that concentration range, the extract also reduced fecundity by 29.6%:69.2%. Lower concentrations (0.14% :1%) i nhibited oviposition of the adult female by as much as 65.7%:95.6%. Overall, these activities showed the effectiveness of B. sarcostachys bark extract as a botanical insecticide to control C. pavonana .
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Claims 5
Claim · model-written summary
Barringtonia extract had larval lethal activity at LC50 0.14%, comparable to neem extract at 0.18%.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Treatment
- bark extract of B. sarcostachyse0
- Interactor
- C. pavonana
_Figure_27e.jpg?width=60)
Crocidolomia pavonanae0pest - Outcome
- lethal effect against C. pavonana larvaee0
- Direction
- stronge0
- Value
- 0.14%e0
- Qualifier
- LC 50 of 0.18%e0
- Comparator
- neem seed extracte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Figure_27e.jpg?width=500)
Verbatim
e0“bark extract of B. sarcostachys possessed a strong lethal effect against C. pavonana larvae with LC 50 of 0.14% which is equivalent to the lethal effect of neem seed extract with LC 50 of 0.18%”
t0“cabbage”
t1“cabbage head caterpillar Crocidolomia pavonana”
Claim · model-written summary
Extract inhibited larval feeding by 68.79% at 0.8%.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Extracts (0.8%e0
- Interactor
- C. pavonanaCrocidolomia pavonanae0pest
- Outcome
- feeding C. pavonana larvaee0
- Direction
- inhibitede0
- Value
- 68.79%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extracts (0.8%:0.24%) inhibited feeding C. pavonana larvae by as much as 68.79%:99.1%”
t0“cabbage”
t1“cabbage head caterpillar Crocidolomia pavonana”
Claim · model-written summary
Extract inhibited larval feeding by 99.1% at 0.24%.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- 0.24%e0
- Interactor
- C. pavonanaCrocidolomia pavonanae0pest
- Outcome
- feeding C. pavonana larvaee0
- Direction
- inhibitede0
- Value
- 99.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extracts (0.8%:0.24%) inhibited feeding C. pavonana larvae by as much as 68.79%:99.1%”
t0“cabbage”
t1“cabbage head caterpillar Crocidolomia pavonana”
Claim · model-written summary
Extract reduced fecundity by 29.6% to 69.2%.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- extracte0
- Interactor
- Crocidolomia pavonanaCrocidolomia pavonanat1pest
- Outcome
- fecunditye0
- Direction
- reducede0
- Value
- 29.6%:69.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extract also reduced fecundity by 29.6%:69.2%”
t0“cabbage”
t1“cabbage head caterpillar Crocidolomia pavonana”
Claim · model-written summary
Lower extract concentrations inhibited adult oviposition by 65.7% to 95.6%.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- Lower concentrations (0.14% :1%)e0
- Interactor
- Crocidolomia pavonanaCrocidolomia pavonanat1pest
- Outcome
- oviposition of the adult femalee0
- Direction
- i nhibitede0
- Value
- 65.7%:95.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower concentrations (0.14% :1%) i nhibited oviposition of the adult female by as much as 65.7%:95.6%”
t0“cabbage”
t1“cabbage head caterpillar Crocidolomia pavonana”
The same questions in other papers
botanical · Crocidolomia pavonana · Brassica oleracea (wild cabbage)Results agree
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