Application Progress of UAV-LARS in Identification of Crop Diseases and Pests

Disease and pest stress is one of the important threats to crop growth development, which have a very adverse impact on yield quality every year, even leading failure. Currently, use plant protection unmanned aerial vehicles (UAVs) for pesticide spraying most effective means controlling diseases pests. However, areas where pests occur are often presented in “point-like” or “patchy” forms, UAV’s full-coverage method results great waste pesticides. Therefore, there an urgent need research identifying area achieve precise targeted spraying, order reduce amount pesticides used improve their utilization. By analyzing low-altitude remote sensing images fields taken by UAVs, real-time prescription maps can be generated meet demand spraying. This review focuses actual needs UAVs. Firstly, RS monitoring mechanism UAVs studied. Secondly, comprehensive investigation literature UAV Low-altitude Remote Sensing (UAV-LARS) technology conducted, summarizing progress pests, especially wheat, cotton, rice. Finally, key issues addressed future development direction UAV-LARS proposed.