TY - JOUR AU - Karthikeyan, K. AU - Jacob, Sosamma PY - 2009/04/14 Y2 - 2024/03/29 TI - Bioefficacy of White Muscardine Fungus, Beauveria bassiana (Balsamo) Vuillemin and Entomopathogenic Nematode, Heterorhabditis indica (Poinar) against Rice Blue Beetle, Leptispa pygmaea Baly JF - Journal of Biological Control JA - JBC VL - 23 IS - 1 SE - Articles DO - 10.18311/jbc/2009/3620 UR - https://informaticsjournals.com/index.php/jbc/article/view/3620 SP - 79-81 AB - Laboratory studies were conducted during the year 2005-2006 to find out the efficacy of the white muscardine fungus, <em>Beauveria bassiana</em> (Balsamo) Vuillemin and the entomopathogenic nematode, <em>Heterorhabditis indica</em> (Poinar) against adult and grubs of rice blue beetle, <em>Leptispa pygmaea</em> Baly. <em>B. bassiana</em> caused a cumulative adult mortality of 56.67-80.00 per cent at 105-109 spores ml<sup>-1</sup> and the LC<sub>50</sub> value was 2.26x10<sup>4</sup> spores ml<sup>-1</sup>. The entomopathogenic nematode, <em>H. indica</em> caused a cumulative mortality of 66.67-91.67 per cent at concentrations of 5IJs to 9IJs in the grubs of <em>L. pygmaea</em>. The cumulative LC<sub>50</sub> value was 3.83IJs. The mortality of<em> L. pygmaea</em> was found to increase with reducing dose and increasing exposure period of both <em>B. bassiana</em> and H. indica. The effective pathogenicity of <em>B. bassiana</em> and <em>H. indica</em> against <em>L. pygmaea</em> is reported for the first time. ER -