Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-13T01:12:45.615Z Has data issue: false hasContentIssue false
  • English
  • Français

Preemergent Control of Long-Stalked Phyllanthus (Phyllanthus tenellus) and Leafflower (Phyllanthus urinaria)

Published online by Cambridge University Press:  12 June 2017

Jeffrey G. Norcini ,
Robert H. Stamps  and
James H. Aldrich
Jeffrey G. Norcini
Affiliation:
N. Florida Res. Edu. Ctr., Univ. Florida/IFAS, Rt. 4 Box 4092, Monticello, FL 32344
Robert H. Stamps
Affiliation:
Central Florida Res. and Edu. Ctr., Univ. Florida/IFAS, 2807 Binion Rd., Apopka, FL 32703
James H. Aldrich
Affiliation:
N. Florida Res. Edu. Ctr., Univ. Florida/IFAS
Get access Rights & Permissions [Opens in a new window]

Abstract

The efficacy of two applications of several PRE herbicides for extended control of long-stalked phyllanthus and leafflower were evaluated under container nursery conditions at two climatically different sites in Florida. Prodiamine at 4.5 kg ai/ha provided the longest and most consistent reductions in number, percent coverage (visual) of the medium, and dry weight of both species. Ten weeks of excellent PRE control (percent medium coverage ≤ 10%; number of weeds reduced by ≥ 70%) of both species was obtained at one site after the first and second applications of prodiamine at 2.2 or 4.5 kg ai/ha; two applications were required at the second site for similar control. Rates of the other herbicides were generally too low for excellent control of both species after one application, the exceptions being dithiopyr at 4.5 kg ai/ha and the preformulated combination of isoxaben and oryzalin (1.1 and 3.4 kg ai/ha, respectively). These herbicides provided good (10% < percent medium coverage ≤ 20%; number of weeds reduced by ≥ 70%) to excellent PRE control of long-stalked phyllanthus after the first and second applications at one site. Percent coverage of the medium by either species in untreated containers was 96 to 100%.

Keywords

Dithiopyr, S,S-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridinedicarbothioateisoxaben, N-[3-(1-ethyl-1-methylpropyl)-5-(isoxazolyl]-2,6-dimethoxybenzamideoryzalin, 4-(dipropylamino)-3,5-(dinitrobenzenesulfonamide)prodiamine, 2,4-dinitro-N3,N3-dipropyl-6-(trifluoromethyl)-1,3-benzenediaminelong-stalked phyllanthus, Phyllanthus tenellus Roxb. # PYLTEPhyllanthus urinaria L. # PYLURLandscapenursery productionchamberbittergripe-weeddithiopyrisoxabenmetolachlororyzalinoxadiazonprodiaminePYLTEPYLUR
Type
Research
Information
Weed Technology , Volume 9 , Issue 4 , December 1995 , pp. 783 - 788
Copyright
Copyright © 1995 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. Creager, R. A. 1982. Evaluation of oxadiazon and oxyfluorfen for weed control in container-grown ornamentals. HortScience 17:40–42.CrossRefGoogle Scholar
2. Derr, J. F. 1993. Wildflower tolerance to metolachlor and metolachlor combined with other broadleaf herbicides. HortScience 28:1023–1026.CrossRefGoogle Scholar
3. Derr, J. F. 1994. Weed control in container-grown herbaceous perennials. HortScience 29:95–97.Google Scholar
4. Elmore, C. D. Chairman. 1990. Weed Identification Guide, Vol. 5. Published by Southern Weed Science Society. 309 W. Clark St., Champaign, IL 61820.Google Scholar
5. Gomez, K. A. and Gomez, A. A. 1984. Statistical Procedures for Agricultural Research. John Wiley and Sons, New York, NY. p. 307.Google Scholar
6. Hatzios, K. K. and Penner, D. 1985. Interactions of herbicides with other agrochemicals in higher plants. Rev. Weed Sci. 1:1–63.Google Scholar
7. Horowitz, M. and Elmore, C. L. 1991. Leaching of oxyfluorfen in container media. Weed Tech. 5:175–180.CrossRefGoogle Scholar
8. Norcini, J. G. and Aldrich, J. H. 1992. Preemergent control of Phyllanthus species. Proc. Florida State Hortic. Soc. 105:200–202.Google Scholar
9. Norcini, J. G. and Aldrich, J. H. 1993. Preemergent control of Phyllanthus tenellus and Phyllanthus urinaria . Proc. Florida State Hortic. Soc. 106:262–264.Google Scholar
10. Stamps, R. H. 1991. Effects of preemergence herbicides on newly established leatherleaf fern. Proc. Florida State Hortic. Soc. 104:325–327.Google Scholar
11. Stamps, R. H. and Mathur, D. D. 1982. Herbicides for weed control in leatherleaf fern. HortScience 17:201–203.Google Scholar
12. Stamps, R. H. and Poole, R. T. 1987. Herbicide effects during leatherleaf fern bed establishment. HortScience 22:261–264.Google Scholar
13. Webster, G. L. 1967. The genera of the Euphorbiaceae in the southeastern United States. J. Am. Arbor. 48(2):303–339.Google Scholar
14. Wehjte, G. R., Gilliam, C. H., and Hajek, B. F. 1993. Adsorption, desorption, and leaching of oxadiazon in container media and soil. HortScience 28:126–128.Google Scholar
15. Wehjte, G. R., Gilliam, C. H., and Reeder, J. S. 1992. Germination and growth of leafflower (Phyllanthus urinaria) as affected by cultural conditions and herbicides. Weed Technol. 6:139–143.Google Scholar