[The evaluation of the stability of a method for testing the insecticidal activity of bacterial preparations against mosquito larvae]. / Otsenka stabil'nosti metoda testirovaniia insektitsidnoi aktivnosti bakterial'nykh preparatov v otnoshenii lichinok komarov.

The dispersion of testing results is due not only to an error in the representative choice of specimens for an experiment, but also to the specific features of each specific experiment. In defining the confidence interval of the value of insecticidal activity it should not be oriented to data on variability of individual tests rather than to the error in the dose-mortality regression representativeness. The test permits one to establish differences in the insecticidal activity of the agents which differ in this index at least by 1.5-fold.