Figure 2. Effect of different supporting media on mortality rate of Drosophila larvae in nematode infection with S. feltiae or H. bacteriophora. Larvae were infected with nematodes at an infectious dose of 100 IJs/larva in a 96-well assay as described in Material and methods (mean ± S.D.; confidence levels are: *: < 0.05; **: < 0.01).