maculiventris, both by ingestion and contact exposure. For the respective ways of exposure, LC50 values calculated for P. maculiventris fourth instars were 30-190 times and 3-13 times higher than ...
The first bioassay method was spraying by means of the Potter-Bourgerjon's tower. The results are expressed in mean lethal concentrations (LC50). The second method was topical application by means of ...