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Mechanism for the enhanced effect of mowing followed by glyphosate application to resprouts of perennial pepperweed (Lepidium latifolium)

Published online by Cambridge University Press:  20 January 2017

Mark J. Renz  and
Joseph M. DiTomaso
Joseph M. DiTomaso
Affiliation:
Weed Science Program, Department of Vegetable Crops, University of California, Davis, CA 95616
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Abstract

Herbicides currently registered for use near water have been ineffective for control of perennial pepperweed. Previous research has demonstrated that mowing followed by an application of glyphosate at 3.33 kg ae ha−1 to resprouting tissue can enhance the control of perennial pepperweed. The objectives of this study were to determine the mechanism(s) responsible for the enhanced effectiveness of glyphosate in combination with mowing. Mowing plants altered the leaf area distribution within the canopy. In mowed areas, the majority of leaf area was in the basal third of the canopy, whereas the bulk of the leaf area was in the top third of the canopy in unmowed plots. This change in plant architecture affected the deposition pattern of the spray solution. Unmowed plants retained 49 to 98% and 42 to 83% of a dye solution within the middle and top thirds of the canopy at the Colusa and Woodland sites, respectively, with only 1.9 to 6.0% dye deposited on the basal third of the canopy at both sites. In contrast, mowed plants had 18 to 34% and 26 to 70% of the dye retained in the basal third of the canopy at the Colusa and Woodland sites, respectively. Greenhouse studies showed that 14C-glyphosate applied to basal leaves of mowed plants translocated significantly more to belowground tissue. Unmowed plants accumulated 0.37% of the applied 14C-glyphosate in belowground tissue 48 h after labeling. In contrast, mowed plants accumulated 6.7% 14C-glyphosate in the belowground tissue. In field studies, estimates of basipetal seasonal translocation rates using total nonstructural carbohydrate pools of roots indicate that mowing did not change the translocation rate. However, the delay in application timing to allow plants to resprout appeared to synchronize applications with maximal translocation of carbohydrates to belowground structures. We hypothesize that the change in the canopy structure of perennial pepperweed after mowing results in fewer aboveground sinks and greater deposition of herbicide to basal leaves where it can preferentially be translocated to the root system. Furthermore, the delay between mowing and resprouting synchronized maximal belowground translocation rates with herbicide application timing. These factors all appear to be involved in the observed enhanced control of perennial pepperweed when combining mowing and glyphosate.

Keywords

Glyphosateperennial pepperweed, Lepidium latifolium L. LEPLAInvasivemowingherbicidedepositionretentionabsorptiontranslocationherbaceous perennial
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 52 , Issue 1 , February 2004 , pp. 14 - 23
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Ashton, F. M. and Monaco, T. J. 1991. Weed Science Principles and Practices. New York: John Wiley & Sons. Pp. 81–82.Google Scholar
Beck, K. G. and Sebastian, J. R. 2000. Combining mowing and fall-applied herbicides to control Canada thistle (Cirsium arvense). Weed Technol 14:351–356.Google Scholar
Becker, R. L. and Fawcett, R. S. 1998. Seasonal carbohydrate fluctuations in hemp dogbane (Apocynum cannabinum) crown roots. Weed Sci 46:358–365.Google Scholar
Briske, D. D. and Richards, J. H. 1995. Plant responses to defoliation: A physiologic, morphologic and demographic evaluation. Pages 635–709 in Bedunah, D. J. ed. Wildland Plants: Physiological Ecology and Developmental Morphology. Denver, CO: Society for Range Management.Google Scholar
Coupland, D., Taylor, W. A., and Caseley, J. C. 1978. The effect of site of application on the performance of glyphosate on Agropyron repens and barban, benzoylprop-ethyl and difenzoquat on Avena fatua . Weed Res 18:123–128.Google Scholar
Crafts, A. S. 1961. The chemistry and mode of action of herbicides. London: Academic. Pp. 28–47.Google Scholar
Cyr, D. R. and Bewley, D. 1989. Carbon and nitrogen reserves of leafy spurge (Euphorbia esula) roots as related to overwintering strategy. Physiol. Plant 77:67–72.Google Scholar
Eberbach, P. L. and Bowmer, K. H. 1995. Conversion of 14C-glyphosate to carbon dioxide by alligatorweed. J. Aquat. Plant Manag 33:27–29.Google Scholar
Hess, F. D. 1985. Herbicide absorption and translocation and their relationship to plant tolerances and susceptibility, Chapter 8. Pages 191–214. in Duke, S. E., ed. Weed Physiology: Herbicides Physiology, Volume 2. Boca Raton, FL: CRC.Google Scholar
Hunter, J. H. 1995. Effect of bud vs. rosette growth stage on translocation of 14C glyphosate in Canada thistle (Cirsium arvense). Weed Sci 43:347–351.Google Scholar
Hunter, J. H. 1996. Control of Canada thistle (Cirsium arvense) with glyphosate applied at the bud vs. rosette stage. Weed Sci 44:934–938.Google Scholar
Hunter, J. H. and McIntyre, G. I. 1974. Factors affecting translocation of 2,4-D in leafy spurge. Weed Sci 22:167–171.Google Scholar
Knoche, M. 1994. Effect of droplet size and carrier volume on performance of foliage-applied herbicides. Crop Prot 13:163–178.Google Scholar
Lacey, J. R., Olson-Rutz, K. M., Haferkamp, M. R., and Kennett, G. A. 1994. Effects of defoliation and competition on total nonstructural carbohydrates of spotted knapweed. J. Range Manage 47:481–484.Google Scholar
Lym, R. G. and Messersmith, C. G. 1987. Carbohydrates in leafy spurge roots as influenced by environment. J. Range Manage 40:139–144.Google Scholar
McIntyre, G. I., Fleming, W. W., and Hunter, J. H. 1978. Effect of shoot decapitation on the translocation of 2,4-D in Cirsium arvense . Can. J. Bot 56:715–720.Google Scholar
McWhorter, C. G. and Hanks, J. H. 1993. Effect of spray volume and pressure on postemergence johnsongrass (Sorghum halepense) control. Weed Technol 7:304–310.Google Scholar
Mielke, P. W., Berry, K. J., and Brier, G. W. 1981. Application of multi-response permutation procedures for examining seasonal changes in monthly mean sea-level pressure patterns. Mon. Weather Rev. 120–126.Google Scholar
Miller, R. F., Svejcar, T. J., Rose, J. A., and McInnis, M. L. 1994. Plant development, water relations, and carbon allocation of heart-podded hoary cress. Agron. J 86:487–491.Google Scholar
Mislevy, P., Mullahey, J. J., and Martin, F. G. 1999. Preherbicide mowing and herbicide rate on tropical soda apple (Solanum viarum) control. Weed Technol 13:172–175.Google Scholar
Monteiro, A., Moreira, I., and Sousa, E. 1999. Effect of prior common reed (Phragmites australis) cutting on herbicide efficacy. Hydrobiologia 415:305–308.Google Scholar
Olson, B. E. and Wallander, R. T. 1999. Carbon allocation in Euphorbia esula and neighbors after defoliation. Can. J. Bot 77:1641–1647.Google Scholar
O'Sullivan, P. A. and Kossatz, V. C. 1984. Absorption and translocation of 14C-3,6-dichloropicolinic acid in Cirsium arvense (L.) Scop. Weed Res 24:17–22.Google Scholar
Renz, M. J. and DiTomaso, J. M. 1998. The effectiveness of mowing and herbicides to control perennial pepperweed in rangeland and roadside habitats. Proc. Calif. Weed Sci. Soc 50:178.Google Scholar
Richards, J. H. and Caldwell, M. M. 1985. Soluble carbohydrates, concurrent photosynthesis and efficiency in regrowth following defoliation: a field study with Agropyron species. J. Appl. Ecol 22:907–920.Google Scholar
Robertson, M. M. and Kirkwood, R. C. 1970. The mode of action of foliage applied translocated herbicides with particular reference to the phenoxy-acid compounds. II. The mechanism and factors influencing translocation, metabolism and biochemical inhibition. Weed Res 10:94–120.Google Scholar
Skoss, J. D. 1955. Structure and composition of plant cuticles in relation to environmental factors and permeability. Bot. Gaz 117:55.Google Scholar
Stamm Katovich, E. J., Becker, R. L., and Kinkaid, B. D. 1996. Influence of nontarget neighbors and spray volume on retention and efficacy of triclopyr in purple loosestrife (Lythrum salicaria). Weed Sci 44:143–147.Google Scholar
Stamm Katovitch, E. J., Becker, R. L., Sheaffer, C. C., and Halgerson, J. L. 1998. Seasonal fluctuations of carbohydrate levels in roots and crowns of purple loosestrife (Lythrum salicaria). Weed Sci 46:540–544.Google Scholar
Stoltenberg, D. E. and Wyse, D. L. 1986. Regrowth of quackgrass (Agropyron repens) following postemergence applications of haloxyfop and sethoxydim. Weed Sci 34:664–668.CrossRefGoogle Scholar
Tardif, F. J. and Leroux, G. D. 1991. Response of quackgrass biotypes to glyphosate and quizalofop. Can. J. Plant Sci 71:803–810.Google Scholar
White, A. D., Heaverlo, C. A., and Owen, M. D. K. 2000. Evaluation of methods to quantify herbicide penetration in leaves. Proc. Weed Sci. Soc. Am 40:119.Google Scholar
Young, J. A., Palmquist, D. E., and Blank, R. R. 1998. The ecology and control of perennial pepperweed (Lepidium latifolium L). Weed Technol 12:402–405.Google Scholar