tailieunhanh - Efficacy of entomopathogenic fungi, Beauveria bassiana against maruca vitrata (Geyer) under laboratory condition
Pathogenecity of entomopathogenic fungi, Beauveria bassiana isolates (Bb111, Bb112, Bb 113 and Bb 114) were assessed against spotted pod borer, Maruca vitrata (Geyer). Bioassays were performed in five different pulse hosts viz., lablab, cowpea, green gram, black gram and pigeonpea against third, fourth and fifth instar larvae of spotted pod borer. Efficacy of Bb 112 was higher irrespective of the pulses tested. The median lethal concentrations of Bb 112 for third, fourth and fifth instar larvae on different pulses viz., lablab, cowpea, black gram, green gram and pigeonpea were in range of x 108 to 2. 04 x 108 , x 108 to x 108 and x 108 to x 108 spores ml-1 , respectively. | Efficacy of entomopathogenic fungi, Beauveria bassiana against maruca vitrata (Geyer) under laboratory condition
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