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Effect of an aqueous extract of neem seed kernel on larvae of the European corn borer, Ostrinia nubilalis
Year:
1985
Source of publication :
Phytoparasitica
Authors :
Ascher, K. R. Simon
;
.
Meisner, Jacob
;
.
Melamed-madjar, Venezia
;
.
Tam, Shlomo
;
.
Volume :
13
Co-Authors:
Meisner, J., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Melamed-Madjar, V., Dept. of Entomology, ARO, Volcani Center, Bet Dagan, Israel
Ascher, K.R.S., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Tam, S., Dept. of Entomology, ARO, Volcani Center, Bet Dagan, Israel
Meisner, J., Dept. of Toxicology, ARO Volcani Center, Bet Dagan, Israel
Melamed-Madjar, V., Dept. of Entomology, ARO Volcani Center, Bet Dagan, Israel
Ascher, K.R.S., Dept. of Toxicology, ARO Volcani Center, Bet Dagan, Israel
Tam, S., Dept. of Entomology, ARO Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
173
To page:
178
(
Total pages:
6
)
Abstract:
An aqueous neem seed kernel extract was sprayed at different concentrations on sweet corn seedlings and assayed against larvae of Ostrinia nubilalis Hb. Larval survival, larval weight and percent pupation served as the criteria of activity. No pupation occurred with fresh residues of 1.0, 0.5 and 0.25% neem extract; only 7% of the larvae pupated at 0.1%, and 16% at 0.05%. The residual effect of the 1% aqueous extract was also investigated, 2, 6 and 8 days after treatment. At all observation times larval weight on the treated leaves was significantly lower than on untreated ones and no pupation occurred even on 8-day-old residues. Systemic properties of neem in the plant were demonstrated by incorporation of the extract into the soil. Quite good control was obtained when the corn seedlings were exposed to larvae 4 and 6 days after the soil treatment, whereas only slight activity was found 2 days after treatment. © 1985, Springer Science + Business Media B.V.. All rights reserved.
Note:
Related Files :
aqueous extract of neem (Azadirachta indica) seed kernels
neem, residual effect of
neem, systemic effect of
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More details
DOI :
10.1007/BF02980665
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29211
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:45
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Scientific Publication
Effect of an aqueous extract of neem seed kernel on larvae of the European corn borer, Ostrinia nubilalis
13
Meisner, J., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Melamed-Madjar, V., Dept. of Entomology, ARO, Volcani Center, Bet Dagan, Israel
Ascher, K.R.S., Dept. of Toxicology, ARO, Volcani Center, Bet Dagan, Israel
Tam, S., Dept. of Entomology, ARO, Volcani Center, Bet Dagan, Israel
Meisner, J., Dept. of Toxicology, ARO Volcani Center, Bet Dagan, Israel
Melamed-Madjar, V., Dept. of Entomology, ARO Volcani Center, Bet Dagan, Israel
Ascher, K.R.S., Dept. of Toxicology, ARO Volcani Center, Bet Dagan, Israel
Tam, S., Dept. of Entomology, ARO Volcani Center, Bet Dagan, Israel
Effect of an aqueous extract of neem seed kernel on larvae of the European corn borer, Ostrinia nubilalis
An aqueous neem seed kernel extract was sprayed at different concentrations on sweet corn seedlings and assayed against larvae of Ostrinia nubilalis Hb. Larval survival, larval weight and percent pupation served as the criteria of activity. No pupation occurred with fresh residues of 1.0, 0.5 and 0.25% neem extract; only 7% of the larvae pupated at 0.1%, and 16% at 0.05%. The residual effect of the 1% aqueous extract was also investigated, 2, 6 and 8 days after treatment. At all observation times larval weight on the treated leaves was significantly lower than on untreated ones and no pupation occurred even on 8-day-old residues. Systemic properties of neem in the plant were demonstrated by incorporation of the extract into the soil. Quite good control was obtained when the corn seedlings were exposed to larvae 4 and 6 days after the soil treatment, whereas only slight activity was found 2 days after treatment. © 1985, Springer Science + Business Media B.V.. All rights reserved.
Scientific Publication
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