Hail damage in Australian pine plantations II. Aerial photographic techniques for mapping the damage

Summary

A brief discussion is presented of five aspects which must be considered when planning an aerial photographic mission to map mechanical hail damage of pine plantations per se or the subsequent dieback due to infection by Diplodea pinea. These are the timing of photography, the film, scale and format to be used and the likely costs. A number of recommendations are made which will enable forest managers to prescribe a suitable aerial survey of any particular damage event.