Portable Device for the Extraction of Xylem Sap from Trees. F. J. Regulski, Jr.,, Department of Plant Pathology, Cook College, New Jersey Agricultural Experiment Station, Rutgers University, New Brunswick 08903. J. L. Peterson, Department of Plant Pathology, Cook College, New Jersey Agricultural Experiment Station, Rutgers University, New Brunswick 08903. Plant Dis. 66:53-54. Accepted for publication 14 April 1981. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-53.

A simple apparatus was developed that provides an inexpensive, rapid, and highly portable method for collecting sizable amounts of xylem sap from trees at various times of the year. The system consists of a hand vacuum pump attached to an Erlenmeyer flask and to the tree with plastic tubing and connectors.

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