Abstract
Effectiveness of bioformulations was tested against pod borer, Helicoverpa armigera (Hubner) in mungbean during Kharif 2015 and 2016 at Punjab Agricultural University, Ludhiana. Among the bioformulations the per cent pod damage and yield varied from 21.43 to 24.49 per cent and 5.50 to 8.53 q/ha respectively. During Kharif 2016, per cent pod damage and yield varied from 12.00 to 15.69 per cent and 6.30 to 9.33 q/ha respectivley. The chemical treatment Chlorpyrifos 20 EC (3.75 l/ha) was most effective in terms of pod damage reduction and yield of mungbean. The Bt formulations PDBC-BT1 and NBAIR-BTG4 (2%) and both doses of Delfin WG (1 and 2Kg/ha) were equally effective in controlling the H. armigera pod damage when compared to Chlorpyrifos 20EC. Myco Jaal (commercial formulation of Beauveria bassiana ) was not effective in controlling the pod borer as compared to B. thuringiensis formulations in mungbean. The B. thuringiensis formulations Delfin (commercial) and PDBC/NBAIR (2%) effectively reduced the pod damage by H. armigera in mungbean and can be integrated in IPM programme for pulse crop protection.
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