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Pakistan Journal of Biological Sciences

Year: 2000  |  Volume: 3  |  Issue: 8  |  Page No.: 1296 - 1298

Field Efficacy of CAMB Bacillus thuringiensis Biopesticide to Control Helicoverpa armigera (Hübner) and Earias vitella (Fabricius) in Okra Crop

Shahid Karim, Ahmad Usman Zafar, Idrees Ahmad Nasir and Sheikh Riazuddin


CAMB Bacillus thuringiensis formulation and two other commercial Bt formulations (Agree and Larvo Bt) were tested on Okra fields to control two lepidopteran pests, Helicoverpa armigera and Earias vitella. CAMB Bt formulation was tested from 250-g/h dose to 1500 g/h dose to see the efficacy against target insect pests. Commercial Bt formulations, Agree and Larvo Bt were used as standard with one dose of 1000 g/h. All microbial insecticides successfully controlled H. armigera and E. vitella larvae in okra field. The efficacy of locally developed Bt formulation was promising in comparison to Agree and Larvo BT.

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