Journal of Biological Control

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Bioefficacy of commercial Bacillus thuringiensis (B.t.) products namely Delfin (B.t.var.kurstaki), Spicturin (B.t.var.galleriae) and Agree (B.t.var. kurstaki+aizawai) (each at 0.1%) in combination with botanicals viz., neem (Azadirachta indica A. Juss) seed oil (1.5%), mint (Mentha spicata L.) leaf extract (2.5%), sweet flag (Acorus calamus L.) rhizome extract (0.5% ), bracteated birthwort (Aristolochia bracteata Retz.) leaf extract (2.5%), mesquite (Prosopis juliflora DC.) leaf extract (2.5%), Indian aloe (Aloe vira L.) leaf extract (0.5%) and palmarosa plant (Cymbopogan martini Wats.) oil (0.5%) was tested in laboratory against tobacco cutworm, Spodoptera litura (Fabricius) and gram pod borer, Helicoverpa armigera (Hubner). Toxic effects of B.t. products and palmarosa oil in mixture were significantly superior to that of other combinations.

Keywords

Bacillus thuringiensis, Botanicals, Helicoverpa armigera, Spodoptera litura.
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