Laboratory Evaluation of Beauveria bassiana (Balsamo) Vuillemin against Indarbela Quadrinotata walker (Lepidoptera: Metarbelidae) - A Key Pest of Casuarina equisetifolia L. in Tamil Nadu


  • Institute of Forest Genetics and Tree Breeding, Coimbatore, 641 002, Tamil Nadu
  • Kerala Forest Research Institute, Peechi, 680 653, Kerala



Beauveria bassiana, Casuarina equisetifolia, Indarbela quadrinotata.


The bark eating caterpillar, Indarbela quadrinotata Walker is a serious pest of Casuarina equisetifolia in Tamil Nadu State. Survey conducted in plantations located in different parts of the State resulted in detection of a potential strain of the biocontrol agent, Beauveria bassiana. Laboratory evaluation of B. bassiana against l. quadrinotata revealed that the fungal suspension at concentrations of 2 x 106, 2 x 107 and 2 x 108 spores/ml was able to kill 66.67 per cent larvae. The fungus at a concentration of 4 x 108 spores/ml gave 100 per cent mortality of the test larvae. The LC50 at 240 hours was 1.6 x 106 spores/ml and the LT50 for the most effective concentration was 82.86 hours.


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How to Cite

Sasidharan, K. R., & Varma, R. V. (2005). Laboratory Evaluation of <I>Beauveria bassiana</I> (Balsamo) Vuillemin against Indarbela <I>Quadrinotata walker</I> (Lepidoptera: Metarbelidae) - A Key Pest of <I>Casuarina equisetifolia</I> L. in Tamil Nadu. Journal of Biological Control, 19(2), 197–200.



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