Some New Ideas in Tree Care

References

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   2. W. E. Hillis

   . 1973. Heartwood, discolored wood, and microorganisms in living trees. Ann. Rev. Phytopath. 11: 197–222.

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2. 1. Shigo, A. L., and
   2. E. vH. Larson

   . 1969. A photo guide to the patterns of discoloration and decay in living hardwood trees. USDA For. Serv. Res. Pap. NE-127. 100p.
3. 1. Shigo, A. L., and
   2. A. Shigo

   . 1974. Detection of discoloration and decay in living trees and utility poles. USDA For. Serv. Res. Pap. NE-294. 11p.
4. 1. Shigo, A. L., and
   2. C. L. Wilson

   . 1971. Are tree wound dressings beneficial? Arborists News 36: 85–88.

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5. 1. Wilson, C. L., and
   2. A. L. Shigo

   . 1973. Dispelling myths in arboriculture today. Amer. Nurseryman 127: 24–28.

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