The eggs hatch within a week to 10 days. They molt 5 times, appearing more like the adult with each molt. Nymphs reach the adult stage in about 30 days. There may be 3 to 5 generations per year depending on location and latitude. This involves cleaning up all plant debris in the fall and elimination of weeds and if possible, legumes.
Timing is critical in order to avoid harming pollinating insects.
Chemicals such as Cygon, Sevin, malathion and pyrethrins may be used according to label instructions. Northern Forestry Centre, 1988. Ralph H. Davidson and William F. Lyon, 1979.