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Effect of Herbicide, Dosage, and Volume on Hazel Brush at Different Foliar Stages

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To determine the minimum amount of herbicide required to give adequate control of hazel brush (Corylus americana and C. cornuta), a comprehensive test of foliage spraying with common herbicides was undertaken in northern Minnesota. Treatments consisted of water emulsions of 2 herbicides applied in 3 dosages and 3 volumes at 5 stages of foliar development. Based on the amount of stem kill and recovery from such injury, it was found that: (1) 2,4-D gave better control than silvex at all growth stages except midleaf when neither was satisfactory; (2) two pounds of 2,4-D per acre was definitely better than either one pound or 1/2 pound at all stages except midleaf; (3) dosage was generally linear in its effect, 2 pounds giving practically complete control at the shoot-growth-complete stage; (4) the volume of mixture in which the 2,4-D was applied did not affect the results; (5) The best control was obtained at the shoot-growth-complete stage; the poorest at midleaf; control was intermediate otherwise.

Document Type: Journal Article

Affiliations: Research Forester and Statistician, Lake States Forest Expt. Sta., Forest Service, U.S. Dept. Agric.

Publication date: December 1, 1963

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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