Summary
This technical note explains how to use a catapult with the advanced line system to gain access to the crown of a tree to collect seed. It is useful for practitioners.
Citation
Stubsgaard F., 1987, Climbing into the crown directly – 4. A light-weight catapult for use in connection with the advanced line system, https://forskning.ku.dk/soeg/result/?pure=files%2F102493942%2FTN_31.pdf