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Articles by B. A. Malik
Total Records ( 1 ) for B. A. Malik
  K. Ahmed , F. Khalique and B. A. Malik
  The study was conducted to determine the effectiveness of application of Bacillus thuringiensis commercial formulation for the control of Helicoverpa armigera (Hbn.) on highly acidic chickpea plant. Dosage-mortality response of neonate larvae of H. armigera due to feeding on HD-1-S-1980 and malic acid alone or combinations of both incorporated in the artificial diet were assessed. Significant synergistic interactions were observed in most of the combinations of HD-I-S-1980 with malic acid (from 1.00-4.00% concentrations.). Slopes of regressions upto 4.00% malic acid + HD-I-S-1980 combinations were steeper than HD-I-S-1980 alone . The LC50 of HD-I-S-1980 decreased with 1.0, 2.0, & 4.0 % malic acid. Potency of HD-I-S-1980 was increased by 0.4, 2.7, and 12.89 folds in 1.0, 2,0, and 4.0 % malic acid combinations respectively. The dosage-mortality responses of the noctuid, H. armigera to combination treatments of the US reference standard (HD-I-S-1980) with malic acid enhanced the effectiveness of the bacteria. The study can prove to be helpful when applying Bt on chickpea to control lepidopterous pests in field.
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