Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.)
Screening for insect growth regulatory activity (IGR) of Thevetia nerifolia leaf extracts were evaluated against Spodoptera litura (Fab.). Methanol extract of leaves provided 53.8 % larval mortality, 29.6 % pupation and 22.3 % adult emergence at 2.5 % concentration level. The extract was further su...
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Julius Kühn-Institut
2013-03-01
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Series: | Journal of Applied Botany and Food Quality |
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doaj-6edd6149559e40e1818869577ffb01c32021-03-02T08:03:18ZengJulius Kühn-InstitutJournal of Applied Botany and Food Quality1613-92161439-040X2013-03-01852Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.)Deb Prasad RayDebashis DuttaS. SrivastavaB. KumarSupradip Saha Screening for insect growth regulatory activity (IGR) of Thevetia nerifolia leaf extracts were evaluated against Spodoptera litura (Fab.). Methanol extract of leaves provided 53.8 % larval mortality, 29.6 % pupation and 22.3 % adult emergence at 2.5 % concentration level. The extract was further subfractioned with solvents of different polarity in search of better IGR activity and chloroform extract was found to be most active in terms of larval mortality (27.5-61.5 %), pupation (28.4-60.2 %) and adult emergence (19.8-52.8 %). GI50 of the extract was recorded to be 3.02 %. Activity was attributed to the glycosides present in the extract. https://ojs.openagrar.de/index.php/JABFQ/article/view/2324 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Deb Prasad Ray Debashis Dutta S. Srivastava B. Kumar Supradip Saha |
spellingShingle |
Deb Prasad Ray Debashis Dutta S. Srivastava B. Kumar Supradip Saha Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.) Journal of Applied Botany and Food Quality |
author_facet |
Deb Prasad Ray Debashis Dutta S. Srivastava B. Kumar Supradip Saha |
author_sort |
Deb Prasad Ray |
title |
Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.) |
title_short |
Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.) |
title_full |
Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.) |
title_fullStr |
Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.) |
title_full_unstemmed |
Insect growth regulatory activity of <em>Thevetia nerifolia</em> Juss. against <em>Spodoptera litura</em> (Fab.) |
title_sort |
insect growth regulatory activity of <em>thevetia nerifolia</em> juss. against <em>spodoptera litura</em> (fab.) |
publisher |
Julius Kühn-Institut |
series |
Journal of Applied Botany and Food Quality |
issn |
1613-9216 1439-040X |
publishDate |
2013-03-01 |
description |
Screening for insect growth regulatory activity (IGR) of Thevetia nerifolia leaf extracts were evaluated against Spodoptera litura (Fab.). Methanol extract of leaves provided 53.8 % larval mortality, 29.6 % pupation and 22.3 % adult emergence at 2.5 % concentration level. The extract was further subfractioned with solvents of different polarity in search of better IGR activity and chloroform extract was found to be most active in terms of larval mortality (27.5-61.5 %), pupation (28.4-60.2 %) and adult emergence (19.8-52.8 %). GI50 of the extract was recorded to be 3.02 %. Activity was attributed to the glycosides present in the extract.
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url |
https://ojs.openagrar.de/index.php/JABFQ/article/view/2324 |
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