Two egg pods obtained after observing the females oviposit at the edge of a gravel road in southeastern Wyoming contained 50 and 57 eggs, respectively. Reared in a greenhouse, caged females have laid from 30 to as many as 70 eggs in a pod. The eggs are reddish brown and 4.8 to 5.8 mm long. The population ecology of the Carolina grasshopper has received no special study. Several population characteristics, however, can be inferred from general studies of grasshopper assemblages in which the Carolina was a member.
Populations appear to persist year after year as long as the habitat remains intact.
Because of the Carolina grasshopper's association with human activities, habitats may be destroyed by development projects, by rerouting of ranch roads, or by changes in farming and ranching practices. Collections of nymphs and adults from a city lot in Wheatland, Wyoming were made for a period of four years, 1989- 92, during which the densities of the successive populations remained approximately the same. Although adults are conspicuous because of their size and flashy wings, giving the impression of large numbers, the density of populations is usually low, around 0.1 to 0.2 young adults per square yard. Populations irrupt infrequently, as in southern Saskatchewan in 1933 and 1934, causing serious loss of crops. No estimates of absolute densities were determined during this outbreak.