Planting tubes or mechanized dibbles create a planting hole through pointed hinged jaws that compress soil to the sides and bottom. The jaws are opened by a foot lever, and the container stock is dropped through the jaw opening into the hole. The Pottiputki™ planting tube is the most popular brand. There are several model types with different tube diameters and adjustable planting depths. One benefit of planting tubes is reduced worker fatigue because the operator does not have to bend over. Planting tubes are popular in the northeastern US and Canada, even though they are considered expensive to purchase and maintain.
References / Additional Information
Haase, D.L.; Landis, T.D.; Dumroese, R.K. 2014. Outplanting [Chapter 17]. In: Wilkinson, K.M.; Landis, T.D.; Haase, D.L.; Daley, B.F.; Dumroese, R.K., eds. Tropical Nursery Manual: A guide to starting and operating a nursery for native and traditional plants. Agriculture Handbook 732. Washington, DC: U.S. Department of Agriculture, Forest Service: 313-337.