What aerial crop data actually tells you
RGB orthomosaics give you a stitched, georeferenced high-res aerial of the paddock - useful for plant counts, gap detection and visual change tracking. Multispectral adds near-infrared and red-edge bands that surface NDVI (plant vigour), stress, irrigation effectiveness and patches of underperformance the eye misses. Thermal shows water stress and irrigation leaks. LiDAR adds canopy structure and terrain for advanced agronomy. Match the sensor to the question.