Software to calculate probit
analyses according to Finney (1971), Which is used
to illustrate the relation between stimulus and
response in toxicological and biological studies. Illustrate dose-response regression line
page, you can calculate corrected efficacy %
according to Abbott, Henderson & Tilton,
Schneider-Orelli or Sun-Shepard formulas.
There are 4 formulas
available to calculate corrected efficacy
% in pesticide trials.
The selection of
appropriate formula is depending on two
1-Trial condition (infestation or
population stability and homogeneity).
2-The data in your hand (live individuals
or mortality %).
The following table will help you to use
the right formula.