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摘要
Enterobacter sp. was isolated from the diseased and dead caterpillars of the tea leaf roller (Caloptilia theivora) from the Darjeeling foothill region. When the vegetative form of the bacterium was applied via food, mortality of C. theivora showed an LC(50) value at 363.1 mu g/ml (bacterial wt./vol. of water) with fiducial limits 363.25 and 362.94 mu g/ml respectively. The LT(50) values for C. theivora were 6 days for 100 mu g/ml, 5.96 days for 300 mu g/ml, 5.81 days for 500 mu g/ml, 4.96 days for 750 mu g/ml and 4.61 days for 1,000 mu g/ml concentrations. The finding would enable one to contemplate development of a microbial pesticide using this novel Enterobacter sp. DD01 for control of the leaf rolling pest.
- 出版日期2008-11
