Journal of Biological Control

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Laboratory and field experiments were carried out to evaluate the bio-efficacy of the white muscardine fungus, Beauveria bassiana (Balsamo) Vuill. and the exotic parasitoid Cephalonomia stephanoderis (Betrem) on coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae) at Pulney hills, Tamil Nadu, India, during the year 2004-05. Laboratory studies showed that B. bassiana at the dose of 1×109 spores ml−1 registered the highest per cent mycosis (65,09%), followed by 1×108 spores ml−1 (61.52%) and 1×107 spores ml−1 (56.39%) as against zero per cent mycosis In untreated check. The results from the field studies indicated that the cumulative mean per cent mycosis of B. bassiana on coffee berry borer recorded throughout the period of observations was highest at the dosage of 1×109 ml−1 (58.49%, followed by 1×108 spores ml−3 (48.76%) and 1×107 spores ml−1 (39.27%). The results of the present study on C. stephanoderis revealed that among the 17 locations surveyed, the highest level of parasitism was observed in Nallurkadu (36.25%), followed by Solaikadu (34.45%) and Adalur (32.44%).

Keywords

Beauveria bassiana, Biological Control, Cephalonomia stephanoderis, Coffee Berry Borer, Hypothenemus hampei, IPM For Coffee.
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