Needle Electrode Driver For Tree Vigor Determinations

Literature Cited

1. 1.↵
   1. Shigo, A. L. and
   2. Alex Shigo

   . 1974. Detection of Discoloration and Decay in Living Trees and Utility Poles. USDA Forest Service Research Paper, NE-294, 11 pp.
2. 2.↵
   1. Tartar, T. A. and
   2. Blanchard. R. O.

   1977. Electrical techniques for disease diagnosis. J. Arboric. 3:21–24.

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3. 3.↵
   1. Wargo, P. M. and
   2. Skutt. H. R.

   1975. Resistance to pulsed electric current: an indication of stress in forest trees. Can. J. For. Res. 5:557–561.

   OpenUrl