How do spatial population structures affect acridid management?

The significance of spatial population structures is discussed relative to locust and grasshopper management. The general scheme of spatial population distribution is characterized. The spatial population structures of the model species (Calliptamus italicus, C. abbreviatus, Chorthippus parallelus, Ch. montanus, Ch. fallax, and Podisma pedestris) are described for temperate Eurasia. The temporal stability of many features of local colonies is shown. The boundaries between the different parts of a population system are evaluated as being very distinct. Movements of grasshoppers (including good flyers) are limited by local landscape barriers. Approaches and procedures of acridological population studies are discussed relative to management systems for pest and rare species.