Greener Journal of Agricultural Sciences

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Jagdish et al

Greener Journal of  Agricultural Sciences Vol. 4 (6), pp. 232-237, July 2014.

 ISSN: 2276-7770 

Research Paper

Manuscript Number: 011314034


Evaluation of some Bio- pesticides against some Important Lepidopteron Pests of Pigeonpea (Cajanus cajan L.) at Pantnagar, Uttarakhand, India


Jaba Jagdish*, Meena Agnihotri and Rakesh Sharma


Department of Entomology, GBPUAT, Pantnagar, Uttarakhand, India.

*Corresponding Author’s Email: jaba.jagdish@ gmail. com


The field experiment conducted to evaluate the relative efficacy of eight biopesticides against gram pod borer  Helicoverpa armigera (Hubner), legume pod borer, Marucavitrata (Geyer) and E. zinkenellainfesting Pigenopea during Kharif season 2010. The population was recorded at different days after spraying of insecticides and it was found that the number of larvae varied non- significantly different from the control in both spray application. Significant effect of bio-pesticides on per cent webbing by M. vitrata,  at First spray application showed minimum (32.00/25shoots) in  NSKE 5.0 % @ 50 g/lit .The pod borer M. vitrata was found lowest in Spinosad 45%ww (4.50%) , followed by NSKE 5 %  (4.81%)  and B. bassiana DOR SC @ 1.89gm/lit (5.39%) as compared to control (14.49%). The per cent pod damage by H. armigera varied significantly which was minimum (27.84%) in Spinosad 45%ww followed by B. bassiana WP @ 1.5kg/ha (28.58%) and B. bassiana DOR SC @ 1.89gm/lit (28.73%)  in comparison to control (51.68%). Grain yield varied from maximum of 1200 kg/ha in Spinosad 45%ww followed by 1191.67 kg/ha in B. bassiana DOR SC @ 1.89gm/lit as compared to 708.33kg/ha in untreated control.

Keywords: Bacillus thuringiensis, Beauveriabassiana, Helicoverpa armigera, insecticides, Marucavitrata, NSKE 5%, microbials, pigeonpea, spinosad.


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