Frank Suber, UGA eggs are white, kettle-shaped, and slightly smaller than those of the green stink bug. They may also feed on the stems and foliage when seed are not present. The degree of damage depends, to some extent, on the developmental stage of the plant when it is pierced by stink bugs. Immature fruit and pods punctured by bugs become deformed as they develop. Seeds are often flattened and shriveled.
Germination is reduced.
Each female drops up to several hundred eggs. Nymphs hatch and pass through five instars before becoming adults. Approximately 4 to 5 weeks elapse between hatching and adult emergence. The eggs and nymphs of stink bugs often suffer high mortality from predators and pathogens. Stink bugs may be controlled with a variety of insecticides, however, many crops have specific action thresholds that should be observed to provide the most economically efficient control.