Effects of Huwa-San TR50 on the average mortality of tomato russet mite A. lycopersici and the predatory mite (N. cucumeris Oudemans) after one week of exposure, expressed as a percentage of the control mortality in well water. Each point is the mean ± SEM of 4 replicates, but in most cases, the error bars are smaller than the symbols used. The lines were fitted using a non-linear regression (log (inhibitor) vs. normalized response- variable slope) in Graphpad Prism 7 with the maximum plateau being 110% and the minimum being 0%.