ISSN:
1570-7458
Keywords:
Tylophora asthmatica
;
Spodoptera litura
;
Tylophorine
;
Tylophorinine
;
Pergularinine
;
Insect antifeedants
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Alkaloid extractables of Tylophora asthmatica (Asclepiadaceae) have been tested for the antifeedant activity against Spodoptera litura by incorporating them in semisynthetic and cellulose diets. The alkaloid extractables at 0.01% concentration inhibited feeding of the larvae. Three compounds, tylophorine, tylophorinine and pergularinine, were isolated; and their EC50 values were found to be 2.9, 8.6 and 12.00 ppm, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00187029
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