Fig. 8.

The rate of selection is shown when a single insecticide is applied every year, in three differing insect species: a) Myzus persicae, b) Meligethes aeneus, c) Frankilinella occidentalis. For each species three doses are compared: a full dose (100%) giving a mortality after spraying of 90% (solid line); a half dose (50%) being half of the full dose (dashed line); and a small dose (10%) being ten percent of the full dose (dotted line). Parameters can be found in Table 1.