Entomopathogenic efficacy of Beauvaria bassina and Bacillus thurengiensis against aphid (Aphis gossypii) Glover on okra under field conditions
Paper Details
Entomopathogenic efficacy of Beauvaria bassina and Bacillus thurengiensis against aphid (Aphis gossypii) Glover on okra under field conditions
Abstract
A field trial was undertaken to study the harmful effect of entomopathogenic Beauvaria bassina and Bacillus thureingienis for the management of Aphis gossypii aphid on okra under field condition. Three replications for each treatment were used. The rate of concentrations was (108 – 109 conidiamL-1) of Beauveria bassiana and (108- 109sporesmL-1) Bacillus thureingiensis were applied as foliar spray. the significant maximum mean reduction in the population of aphids was recoded for Beauveria + Bacillus 30.59, 63.55 and 84.85 followed by Beauveria bassiana with% reduction of 27.86,57.52 and 79.20, and 26.54, 56.88 and 77.56 after 24, 48 and 72 hrs of post application respectively. The minimum% reduction in population of aphids was recorded from control with 6.55, 8.50±0.36 and 9.75 after 24, 48 and 72 hrs post treatments application. The combination of Beauvaria bassina and Bacillus thureingienis caused maximum% reduction in population in the field therefore, it recommended to use biopesticdes for the management of A. gossypii in okra field.
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Sarah Allah Dada, Javed Khan, Bashir Ahmad Khan, Imtiaz Khan, Aisha Irshad, Rafia Saif, Ali Waqar (2021), Entomopathogenic efficacy of Beauvaria bassina and Bacillus thurengiensis against aphid (Aphis gossypii) Glover on okra under field conditions; IJB, V18, N6, June, P268-272
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