Consider all control options. Select the most effective and appropriate option or combination of options. Apply controls at the right time. Insects are more vulnerable at certain stages of their life cycle. Eggs may be controlled with oil sprays.
Larval stages are particularly vulnerable.
It is critical to control insects before they reproduce and increase their population. When an insect is protected by the pupal case, control is nearly impossible. Reapplication may be necessary for many pests to kill the young as they emerge from eggs. Know how long the pesticide remains effective on the plant. This is also important in food crops.