Journal of Food, Agriculture and Environment




Vol 3, Issue 3&4,2005
Online ISSN: 1459-0263
Print ISSN: 1459-0255


Joint action of Beauveria bassiana (Balsamo) Vuillemin and synthetic pyrethroids against Helicoverpa armigera (Hubner) (Noctuidae: Lepidoptera)


Author(s):

P. Duraimurugan *, A. Regupathy

Recieved Date: 2005-03-21, Accepted Date: 2005-09-19

Abstract:

The joint action between Beauveria bassiana (Balsamo) Vuillemin and synthetic pyrethroids was tested against third instar larvae of Helicoverpa armigera (Hubner) on different hosts. Combined application of B. bassiana + pyrethroids at LC25 + LC25 on different hosts proved effective as the mortality was 2.67-16.99 and 7.17-26.00 per cent more than the expected mortality at LC50 of B. bassiana alone and LC50 of pyrethroids alone respectively.

Keywords:

Helicoverpa armigera, Beauveria bassiana, synthetic pyrethroids, joint action analysis


Journal: Journal of Food, Agriculture and Environment
Year: 2005
Volume: 3
Issue: 3&4
Category: Agriculture
Pages: 65-67


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