Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-22T05:47:25.311Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Selected Herbicides on Production of Southern Pines (Pinus spp.) in Nursery Seedbeds

Published online by Cambridge University Press:  12 June 2017

D. H. Gjerstad ,
D. B. South  and
R. H. Crowley
D. H. Gjerstad
Affiliation:
Dep. For., Auburn Univ. Agric. Exp. Stn., Auburn, AL 36830
D. B. South
Affiliation:
Soil & Herbicide Res. Section Leader, Int. Paper Co., Natchez, MS 39120
R. H. Crowley
Affiliation:
Dep. For., Auburn Univ. Agric. Exp. Stn., Auburn, AL 36830
Get access Rights & Permissions [Opens in a new window]

Abstract

Regional pine seedling tolerance experiments were conducted on five pine (Pinus spp.) species at ten forest nurseries in 1974. Similar studies in 1975 included four pine species at nine locations. From these studies, herbicides appearing safe for preemergence use are bifenox [methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate] at 1.7, 3.4, and 6.7 kg/ha; butralin [4-(1,1-dimethylethyl)-N-(1-methylpropyl)-2,6-dinitrobenzenamine] at 2.2, 3.4, 4.5, and 6.7 kg/ha, napropamide [2-(α-naphthoxy)-N,N-diethylpropionamide] at 1.7 kg/ha; napropamide at 1.1 kg/ha plus bifenox at 3.4 kg/ha; dinitramine (N4,N4-diethyl-α,α,α-trifluoro-3,5-dinitrotoluene-2,4-diamine) at 0.37 and 0.74 kg/ha; diphenamid (N,N-dimethyl-2,2-diphenylacetamide) at 4.5 kg/ha, trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 1.1 kg/ha; and profluralin [N-(cyclopropylmethyl)-α,α,α-trifluoro-2,6-dinitro-N-propyl-p-toluidine] at 1.1 and 2.2 kg/ha. Southern pine seedling tolerance to oryzalin (3,5-dinitro-N4,N4-dipropylsulfanilamide) was unacceptable at 1.1 and 2.2 kg/ha. Napropamide severely stunted seedlings at 6.7 kg/ha but affected seedlings only slightly at 3.4 kg/ha.

Keywords

Preemergenceseedling tolerancehandweedingforest
Type
Research Article
Information
Weed Science , Volume 27 , Issue 2 , March 1979 , pp. 173 - 177
Copyright
Copyright © 1979 by the 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. Ahrens, J. F., Merrill, C. G., and Cubanski, M. 1976. Herbicides for conifer seedbeds. Connecticut Agric. Exp. Stn., New Haven, Bull. 766 13 pp.Google Scholar
2. Barr, G. and Merkle, M. G. 1976. Weed control in a pine seedling nursery. Proc. South. Weed Sci. Soc. 29:258–261.Google Scholar
3. Carter, M. C. and Martin, J. W. 1967. Chemical weed control in southern forest nurseries. Alabama Agric. Exp. Stn. Cir. 156. 12 pp.Google Scholar
4. Dill, T. R. and Carter, M. C. 1973. Preemergence weed control in southern forest nurseries. Weed Sci. 21:363–366.CrossRefGoogle Scholar
5. McDonald, S. E., Isaacson, J. A., and Fisher, B. E. 1974. Using diphenamid herbicide for seedbed weed control cuts hand-weeding labor 75 percent. Tree Planter's Notes 25(3):15–17.Google Scholar
6. Miller, R. S., Chairman, . 1975. Forest tree nurseries. Pages 84–86 in Pest control: An assessment of present and alternative technologies. Vol. 4. For. pest control. N.A.S. Washington, D.C. Google Scholar
7. Wakeley, P. C. 1954. Planting the southern pines. U.S. Dep. Agric. Monogr. 18. 233 pp.Google Scholar