Abstract
The studies were carried out to evaluate toxic and antifeedant properties of 5% aqueous extracts of eight plant species against major insect pests infesting cabbage viz., diamondback moth, Plutella xylostella (L.), cabbage white butterfly, Pieris brassicae (L.) and cabbage aphid, Brevicoryne brassicae (L.). The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%). A similar trend in mortality amongst diamondback moth larvae was evident. However, the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%). The corrected mortality of aqueous extracts of Artemisia brevifoiia Wall., Chromalaena adenophorum (Spreng.), L. camara, M. azedarach and Rumex nepaiensis Spreng reflected varying degree of antifeedant effect in all the three test insects. Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts. Similarly the plant extracts also exhibited 14–27% reduction in settlement of B. brassicae on the treated leaf surface of all the plant extracts evaluated.
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Claims 9
Claim · model-written summary
Lantana camara extract gave 55.2% mortality in P. brassicae larvae.
Brassica oleracea var. capitata_Pieris_brassicae_-_Foret_de_Bouconne%2C_France_-_female.jpg?width=60){kind=small}
Pieris brassicaeOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
_Pieris_brassicae_-_Foret_de_Bouconne%2C_France_-_female.jpg?width=500)
Verbatim
e0“maximum mortality (55.2%) with Lantana camara (L.)”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
M. koenigii extract gave minimum P. brassicae mortality of 12%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum in M. koenigii (12%)”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
Diamondback moth larvae showed a similar mortality trend across extracts.
Plutella xylostellaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar trend in mortality amongst diamondback moth larvae was evident”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
Melia azedarach extract caused significantly high B. brassicae nymph mortality of 39%.
.jpg?width=60){kind=small}
Brevicoryne brassicaeOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.)”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
Murraya koenigii extract gave minimum B. brassicae nymph mortality of 17.1%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%)”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
The listed botanical extracts showed varying antifeedant effects in all three test insects.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Artemisia brevifoiia Wall., Chromalaena adenophorum (Spreng.), L. camara, M. azedarach and Rumex nepaiensis Spreng reflected varying degree of antifeedant effect in all the three test insects”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
Extracts reduced P. brassicae feeding by 45–61% versus untreated control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
Extracts reduced P. xylostella feeding by 34–48% versus untreated control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
Claim · model-written summary
Extracts reduced B. brassicae settlement on treated leaves by 14–27%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant extracts also exhibited 14–27% reduction in settlement of B. brassicae on the treated leaf surface”
e1“The exposure of third instar larvae of P. brassicae to plant extracts resulted in maximum mortality (55.2%) with Lantana camara (L.) and minimum in M. koenigii (12%).”
e2“the corrected mortality of fourth instar nymphs of B. brassicae was observed to be significantly high (39%) in Melia azedarach (L.), while Murraya koenigii (L.) extract reflected mean minimum mortality (17.1%).”
e3“Reduction in feeding over untreated control in P. brassicae and P. xylostella was observed to be 45–61 and 34–48%, respectively, in these plant extracts.”
t0“Cabbage”
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See all 14 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.