With a drone and an infrared camera attacks of weevils is easy to discover in an early stage. By analyzing the pictures the Festman Company in Austria can find the trees that drop in chlorophyll. And the camera reveals the difference before the eye.
The earlier the forest owner can remove the attacked trees, the better she or he can combat the weevils. And that will be necessary in the future since researchers expect an increase in weevil attacks when climate changes.
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