Abstract
Laboratory evaluation of different Bacillus thuringiensis subspecies revealed that B. thuringiensis subsp. kurstaki (NCIM 2514) at 108 spores/ml concentration caused more than 85% mortality to the neonate larvae of the lepidopteran insects Spodoptera litura (F.) and Phthorimaea operculella (Z.). This strain at 1010 and 108 spores/ml concentration was effective against the major lepidopteran pests comprising the pod boring complex of pigeonpea (Cajanus cajan), viz. Helicoverpa armigera (H.) and Exelastia atomosa (W.) under the field trials. Total grain yield from this treatment was at least 1.5 times more than the untreated control.
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Puntambekar, U., Mukherjee, S. & Ranjekar, P. Laboratory screening of different Bacillus thuringiensis strains against certain lepidopteran pests and subsequent field evaluation on the pod boring pest complex of pigeonpea (Cajanus cajan). Antonie Van Leeuwenhoek 71, 319–323 (1997). https://doi.org/10.1023/A:1000161206642
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DOI: https://doi.org/10.1023/A:1000161206642