Insecticides should be applied to the late summer generation of flea beetle adults if feeding damage is
severe. Early maturing potato varieties are more susceptible to feeding damage than late maturing
varieties. Emergence of flea beetles from pupation occurs over several weeks, so applications should be
delayed as long as possible after the beginning of emergence, as insects in the soil will be unaffected by the
insecticide. At the time of this application, Colorado potato beetle adults may also be on the plants, so it is
important that the insecticide used to control flea beetles not be from the same group that was used to
control of Colorado potato beetle larvae earlier in the season.