Abstract: In order to be able to apply insecticides selectively, thresholds as well as current infestation probability must be known. The probability of infestation of certain pest can be determined by different estimation methods. The available monitoring methods for pests in vegetable crops under field condition are time-consuming, labor-intensive or not field-specific. Automation can simplify monitoring. In 2013, the first automatic systems were tested under field conditions. The digital detection of pests was possible with three systems: TrapView, a modified funnel trap and a TriangelCameraSystem. In particular, TrapView and TriangelCameraSystem turned out to be most promising.