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Studies on the Cut-Surface Method II. Control of Blue Oak and Madrone

Published online by Cambridge University Press:  12 June 2017

O. A. Leonard ,
C. E. Carlson  and
D. E. Bayer
O. A. Leonard
Affiliation:
Department of Botany, University of California, Davis
C. E. Carlson
Affiliation:
California Division of Forestry, District 3, Sacramento
D. E. Bayer
Affiliation:
Department of Botany, University of California, Davis
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Abstract

The control of blue oak (Quercus douglasii H. & A.) was investigated by cut surface applications of water-soluble amine formulations of 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), 2-(2,4-dichlorophenoxy)propionic acid (2,4-DP), 2-(2,4-5-trichlorophenoxy)propionic acid (silvex); ester formulations of 2,4,5-T and silvex; potassium salt of 4-amino-3,5,6-trichloropicolinic acid (picloram); and ammonium sulfamate. All phenoxy herbicides were relatively effective in controlling blue oak; the least favorable results were obtained with undiluted ester forms of 2,4,5-T and silvex, and ammonium sulfamate. Picloram was more effective than the water-soluble amine salts of 2,4-D on both blue oak and madrone (Arbutus mensiesii Pursh). Relatively favorable results were obtained on madrone by single-point applications to stems with picloram. Applications to holes 1 inch deep were more effective than when applied in deeper or shallower holes. Diluting alkanolamine salts of 2,4-D with water and butoxyethanol ester of 2,4,5-T with diesel oil had a generally depressing effect on kill (except for the first dilution of the ester). Plant kill decreased as the diameters of the trees increased. Rainwater analyses did not furnish an explanation for the marked increase in growth of the grass beneath the treated trees.

Type
Research Article
Information
Weeds , Volume 13 , Issue 4 , October 1965 , pp. 352 - 356
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

1. Clor, M. A., Crafts, A. S., and Yamaguchi, S. 1964. Translocation of C14—labeled compounds in cotton and oaks. Weeds 12:194–200.Google Scholar
2. Harvvey, W. A., Johnson, W. H., and Bell, F. L. 1959. Control of oak trees on California foothill range. Down to Earth 15(1):3–6.Google Scholar
3. Johnson, W. H., McKell, C. M.,Evans, R. A., and Berry, L. J. 1959. Yield of annual range forage following 2,4-D application on blue oak trees. J. Range Manag. 12:18–20.Google Scholar
4. Leonard, O. A. 1956. Effect on blue oak (Quercus douglasii) of 2,4-D and 2,4,5-T concentrates applied to cuts in trunks. J. Range Manag. 9:15–19.Google Scholar
5. Leonard, O. A. 1957. Effect of phenoxy herbicide concentrates applied to cuts of sprouting tree species. Weeds 5:291–303.Google Scholar
6. Leonard, O. A. and Crafts, A. S. 1956. Translocation of herbicides. III. Uptake and distribution of radioactive 2,4-D by brush species. Hilgardia 26:366–415.CrossRefGoogle Scholar
7. Leonard, O. A., and Carlson, C. E. 1960. Kill of blue oak and poison oak by aircraft spraying with phenoxy herbicides. Weeds. 8:625–630.CrossRefGoogle Scholar
8. Leonard, O. A., Weaver, R. J., and Kay, B. L. 1961. Bioassay method for determining 2,4-D in plant tissue. Weeds 10:20–22.CrossRefGoogle Scholar
9. Leonard, O. A., and Murphy, A. H. 1965. Relationship between herbicide movement and stump sprouting. Weeds 13:26–30.Google Scholar
10. Leonard, O. A., Glenn, R. K., and Bayer, D. E. 1965. Studies on the cut-surface method. 1. Translocation in blue oak and madrone. Weeds 13:(this issue).Google Scholar
11. Leonard, O. A., Lider, L. A., and Lange, A. H. 1964. Toxicity of several herbicides to grape rootings applied to the roots and and to the shoots. Amer. J. Enol. and Vitic. 15:206–213.Google Scholar
12. Murphy, Alfred H., and Crampton, Beecher. 1964. Quality and yield of forage as affected by chemical removal of blue oak (Quercus douglasii) . J. Range Manag. 17:142–144.Google Scholar