Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-25T05:21:06.240Z Has data issue: false hasContentIssue false
  • English
  • Français

Herbicides for Release of Short-Leaf Pine and Native Grasses

Published online by Cambridge University Press:  12 June 2017

Harry M. Elwell
Harry M. Elwell*
Affiliation:
Crops Research Division, ARS, U. S. Department of Agriculture, Stillwater, Oklahoma
Get access

Abstract

Aerial herbicide treatments were made on a native stand of short-leaf pine (Pinus echinata Mill.) heavily infested with noncommercial oak (Quercus sp.), hickory (Carya sp.), and associated species in southeastern Oklahoma from 1957 through 1960. Two formulations of 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) were applied in May and September at 1½ lb/A annually in one, two, and three applications with the later two made a year apart. The most diameter growth for all sizes of pine measured occurred following May treatments. Late May aerial applications also were made with 2-(2,4-dichlorophenoxy) propionic acid (dichloroprop) and 2-(2,4,5-trichlorophenoxy) propionic acid (silvex). Silvex reduced pine cone development, seed fill, and germination.

Native grass growth was increased twice following good weed tree control. However, where dense short-leaf pine seedlings developed, the native grasses were smothered and volume of herbage decreased.

Type
Research Article
Information
Weeds , Volume 15 , Issue 2 , April 1967 , pp. 104 - 107
Copyright
Copyright © 1967 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Arend, J. L. 1959. Airplane application of herbicides for releasing conifers. J. Forest. 57:738–749.Google Scholar
2. Burns, P. Y. 1957. Aerial spraying with herbicides to control hardwoods in western Louisiana. Progr. Rep. No. 4, L.S.U., School of Forestry.Google Scholar
3. Chaiken, L. E. 1951. The use of chemicals to control inferior trees in management of loblolly pine. Southeastern Forest Experiment Station, Paper No. 10.Google Scholar
4. Darrow, Robert A. and Silker, T. H. 1959. Hardwood control for pine release by spraying with helicopter and fixed-wing plane. Proc. SWC 12:138–142.Google Scholar
5. Dumbroff, Erwin B. 1960. Aerial foliage spray fail to eradicate scrub oak on Florida sandhills. J. Forest. 58:397–398.Google Scholar
6. Elwell, Harry M. 1962. Control of hardwoods with 2,4,5-T in aerial applications for pine release and native grass improvement. Proc. SWC 15:161–162.Google Scholar
7. Malac, Barry F. 1961. Early indications of growth responses following foliar applications of herbicides. Proc. SWC 14: 222–227.Google Scholar
8. McConkey, T. W. 1958. Helicopter spraying with 2,4,5-T release young white pine. Northeastern Forest Experiment Station, Paper No. 101.Google Scholar
9. Peevy, Fred A. 1960. Controlling southern weed trees with herbicides. J. Forest. 58:708–710.Google Scholar
10. Ralston, R. A. and Coulter, L. L. 1954. Aerial tests with 2,4,5-T for scrub oak control in lower Michigan. Lake States Forest Experiment Station, Technical Note 424.Google Scholar
11. Rogers, Nelson F. 1958. Airplane-sprayed herbicides release shortleaf pine from hardwoods. Central States Forest Experiment Station Note 117.Google Scholar
12. Walker, Lawrence C. 1955. Weed tree problems in Piedmont Pine stands. Proc. SWC 8:273–277.Google Scholar