These two insects are often found on the same plant, and they damage the plant in the same manner. The outer leaves will be covered with large irregular shaped holes, along with damaged heads. Scheduled pesticide applications and good coverage, especially with the biological pesticides, are important in controlling these insects. Cabbage, collards, and related plants. Colorado Potato Beetle Description.
Adults are small, oval shaped insects with black and yellow stripes on the wing covers.
The immature beetles are red with black spots. Both adults and immatures damage the plant by feeding on leaves and new growth. This insect prefers potatoes but will feed on eggplants, tomatoes, and peppers. Corn Earworm or Tomato Fruitworm Description. The adult, a gray-brown moth, is most active during late evening and night hours and deposits eggs at this time.