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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Main Authors: Deb Prasad Ray, Debashis Dutta, S. Srivastava, B. Kumar, Supradip Saha
Format: Article
Language:English
Published: Julius Kühn-Institut 2013-03-01
Series:Journal of Applied Botany and Food Quality
Online Access:https://ojs.openagrar.de/index.php/JABFQ/article/view/2324
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spelling 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.
url https://ojs.openagrar.de/index.php/JABFQ/article/view/2324
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