  The rapid development of technology has brought unmanned aerial vehicles
(UAVs) to become widely known in the current era. The market of UAVs is also
predicted to continue growing with related technologies in the future. UAVs
have been used in various sectors, including livestock, forestry, and
agriculture. In agricultural applications, UAVs are highly capable of
increasing the productivity of the farm and reducing farmers' workload. This
paper discusses the application of UAVs in agriculture, particularly in
spraying and crop monitoring. This study examines the urgency of UAV
implementation in the agriculture sector. A short history of UAVs is provided
in this paper to portray the development of UAVs from time to time. The
classification of UAVs is also discussed to differentiate various types of
UAVs. The application of UAVs in spraying and crop monitoring is based on the
previous studies that have been done by many scientific groups and researchers
who are working closely to propose solutions for agriculture-related issues.
Furthermore, the limitations of UAV applications are also identified. The
challenges in implementing agricultural UAVs in Indonesia are also presented.
