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Notes and Observations: Effect of Vapam Biocide on the Growth of Red Pine Seedlings

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An application of 60 lbs. per acre of Vapam (SMDC, Sodium N-methyldithiocarbamate) produced abnormally large, succulent 3-0 red pine seedlings with totally inadequate root systems, very high top-root and height-diameter ratios, and low specific gravity of stems. The treatment nearly annihilated mycorrhizal short roots and fibrous laterals with resulting 75 percent decrease in the adsorbing capacity (titration value) of roots.

Document Type: Miscellaneous

Affiliations: The University of Wisconsin, Madison

Publication date: September 1, 1965

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

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