Fig. 4

Long-term rearing of H. halys in culture. The number of H. halys adults in our lab colony is shown over time. From the egg masses obtained from Dr. Don Weber’s laboratory, 64 adults emerged (generation 1). A steady increase in adults was seen in generation 2, as expected. About 2 months later, generation 3 reached its peak at 849 adults. Following this point, our lab population experienced severe decline, with generation 4 peaking at 84 adults. This decimation was accompanied by adults displaying malformed wings and small body size