How to use aerial remote sensing to monitor pests and diseases?

After crops or forest trees and other green plants are harmed by pests and diseases, their chlorophyll will be destroyed to varying degrees, so the spectral reflection of their near-infrared band (equivalent to MSS6, MSS7) is significantly affected, and the infrared color or false color image The difference between the above and healthy plants is very obvious. Therefore, low-altitude infrared Remote sensing is usually used to monitor and forecast crop diseases and insect pests.