Hostname: page-component-8448b6f56d-xtgtn Total loading time: 0 Render date: 2024-04-20T12:08:27.996Z Has data issue: false hasContentIssue false
  • English
  • Français

Control of Selected Perennial Weeds with Glyphosate

Published online by Cambridge University Press:  12 June 2017

Mark H. Yonce  and
Walter A. Skroch
Mark H. Yonce
Affiliation:
Dep. Hortic. Sci., North Carolina State Univ., Raleigh, NC 27695-7609
Walter A. Skroch
Affiliation:
Dep. Hortic. Sci., North Carolina State Univ., Raleigh, NC 27695-7609
Get access Rights & Permissions [Opens in a new window]

Abstract

The efficacy of glyphosate as affected by rate, time of application, and addition of surfactant3 was evaluated on blackberry, Japanese honeysuckle, poison ivy, sericea lespedeza, and trumpetcreeper. The addition of surfactant (0.5% v/v) to glyphosate had no effect on the control of the weeds studied. Glyphosate applied in mid-June to September at 1.1 or 2.2 kg/ha controlled blackberry. Mid-August glyphosate applications of 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle; there was less than 75% at one site due to moisture stress. Use of 2.2 kg/ha of glyphosate from mid-June through mid-August controlled 87% of poison ivy. Consistent commercially acceptable control of sericea lespedeza was obtained when glyphosate was applied at 1.1 or 2.2 kg/ha at the time of flowering. Applying glyphosate at 1.1 or 2.2 kg/ha from late July through early October controlled 50% or more of the trumpetcreeper.

Keywords

Glyphosate, N-(phosphonomethyl)glycinesurfactant (ethylan TT15), 4, (O-ethyl-S-phenylethylphosphono-dithioate)blackberry, Rubus sp.Japanese honeysuckle, Lonicera japonica Thunb. ♯4 LONJApoison ivy, Toxicodendron radicans (L.) Kuntze ♯ TOXRAsericea lespedeza, Lespedeza cuneata (Dumont) G. Don ♯ LESCUtrumpetcreeper, Campsis radicans (L.) Seem. ex Bureau ♯ CMIRASurfactantLONJATOXRALESCUCMIRA
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 37 , Issue 3 , May 1989 , pp. 360 - 364
Copyright
Copyright © 1989 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. Anderson, W. P. 1983. Weed Science: Principles. West Publishing Co., New York. 655 pp.Google Scholar
2. Brooks, R. L., Merkle, M. G., and Chandler, J. M. 1985. Efficacy of glyphosate/adjuvant combinations for johnsongrass control. Proc. South. Weed Sci. Soc. 38:46.Google Scholar
3. Buhler, D. D. and Burnside, O. C. 1983. Effect of spray components on glyphosate toxicity to annual grasses. Weed Sci. 31:124–130.CrossRefGoogle Scholar
4. Duke, S. O., ed. 1985. Weed Physiology. Herbicide Physiology. Vol. II. Pages 206–211.Google Scholar
5. Grossbard, E. and Atkinson, D., eds. 1985. The Herbicide Glyphosate. Butterworth and Co., Ltd. 490 pp.Google Scholar
6. Ku, H. S., Misich, G. J., Limpel, L. E., and Findack, D. C. 1986. Enhancement of glyphosate activity by a fatty amine ethoxylate. Proc. South. Weed Sci. Soc. 39:527.Google Scholar
7. Moosavi-Nai, H. and Dore, J. 1979. Factors affecting glyphosate activity in Imperata cylindrica (L.) Beauv. and Cyperus rotundus L. I: Effect of soil moisture. Weed Res. 19:137–143.Google Scholar
8. Neal, J. C. and Skroch, W. A. 1985. Effects of timing and rate of glyphosate application to selected woody ornamentals. J. Am. Soc. Hortic. Sci. 110:860–864.Google Scholar
9. Skroch, W. A. 1978. Perennial weed control in orchards. Proc. South. Weed Sci. Soc. 31:172.Google Scholar
10. Stamm, G. K. and Ashley, R. A. 1981. The effect of time of glyphosate application on the control of blackberries. Proc. Northeast. Weed Sci. Soc. 35:144–146.Google Scholar
11. Wyrill, J. B. III and Burnside, O. C. 1977. Glyphosate toxicity to common milkweed and hemp dogbane as influenced by surfactants. Weed Sci. 25:275–287.Google Scholar