| So... What are Harlequin Bugs? The adult Harlequin bug, a shield-shaped bug with bright red, orange, and black markings, is generally about 3/8"-1/2" in length. Nymphs look similar to the adults, but they are more roundish in shape and do not have wings. Eggs are barrel-like in shape and are light yellow or gray. The eggs are deposited in clusters on the leaves of crucifers. Reproduction Patterns of Harlequin Bugs 
Harlequin bugs spend the winter hidden under plant debris, then, after emerging in the spring, females will lay their eggs. Eggs are laid in two-row clusters on the underneath parts of leaves. When she has finished, the female will have laid about 150 eggs. The female will fiercely defend her eggs from predators. Within three weeks, the eggs will hatch and the emerging nymphs will begin feeding on the host plant. Nymphs feed for about two months and progress through five instars until they become adults. There are anywhere from 1 to 4 generations per year depending on the climate of a particular region. Harlequin Bug's Habitat Harlequins are found throughout the continental United States and reach southward through Mexico to its native countries in Cental America. It can be found in agricultural fields as well as home gardens. Its favorite foods include members of the cabbage family, including Brussels sprouts, broccoli, cauliflower, and kale. It also feasts on members of the mustard family, including wild mustard, peppergrass and watercress. In a pinch, these injurious pests will also partake of corn, tomatoes, squash, asparagus and beans. Safer®Brand brings you a variety of effective insect control products that are gentler on the environment! Most of them proudly display the OMRI Listed® organic seal and comply for use in organic gardening! 
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