Mechanical tree shaker explained

A mechanical tree shaker is a device that uses a hydraulic cylinder to squeeze a tree. It is used in the harvesting of some fruit trees, especially pecans.^[1] Tree shakers are also used in the Christmas tree industry to remove dead needles from cut trees.

Notes and References

1. Web site: Archived copy . 2016-05-01 . 2015-10-11 . https://web.archive.org/web/20151011131227/http://ucanr.edu/repositoryfiles/ca1210p3-64680.pdf . dead .