Tarnished plant bugs are mostly in the adult stage now and young nymphs are present. Susceptible crops such as celery and lettuce should be monitored for the presence of these insects. Colorado potato beetle larvae are generally in the later instars now. Many fields still have large numbers of eggs in them so larvae may be present and feeding for another two to three weeks.
Numbers are low compared to other years but they are capable of laying numerous eggs.
They feed on a wide variety of vegetables including cole crops, many of the oriental vegetables, radish and rutabaga. Larvae have now been detected in cabbage. They are feeding actively and may require control measures. Minnesota is reporting very high levels of parasitism, which may be a reason for our low numbers as well. The relatively dry, hot weather over the past week will help to slow disease development.