Mechanical tree shaker
{{Short description|Machine for shaking trees}}
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File:Olive harvest 2014.webm.]]
File:20111012-NRCS-JMV-0002 - Flickr - USDAgov.jpg from Carya illinoinensis using a mechanical tree shaker.]]
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.{{Cite web |url=https://ucanr.edu/repositoryfiles/ca1210p3-64680.pdf |title=Archived copy |access-date=2016-05-01 |archive-date=2015-10-11 |archive-url=https://web.archive.org/web/20151011131227/http://ucanr.edu/repositoryfiles/ca1210p3-64680.pdf |url-status=dead }} Tree shakers are also used in the Christmas tree industry to remove dead needles from cut trees.