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Effect of Dactylaria higginsii on interference of Cyperus rotundus with L. esculentum

Published online by Cambridge University Press:  12 June 2017

J. B. Kadir
Affiliation:
Department of Plant Pathology, University of Florida, Gainesville, FL 32611
W. M. Stall
Affiliation:
Horticultural Sciences Department, University of Florida, Gainesville, FL 32611-0690
T. A. Bewick
Affiliation:
University of Massachusetts, Cranberry Experiment Station, East Wareham, MA 02538

Abstract

Greenhouse experiments were conducted to evaluate the effect of the fungus Dactylaria higginsii on the interference of Cyperus rotundus (purple nutsedge) with Lycopersicon esculentum (tomato ‘Agroset'). Cyperus rotundus plants established from tubers were planted at initial densities equivalent to 40, 80, 160, and 320 tubers m−2 with L. esculentum in 35-cm-diam pots. Cyperus rotundus plants were inoculated by spraying with a spore suspension of D. higginsii containing 0.5% Metamucil as a carrier. The treatments were Metamucil only, 104 conidia ml−1 + Metamucil, or 106 conidia ml−1 + Metamucil. In the absence of D. higginsii, C. rotundus at densities of 80, 160, and 320 tubers m−2 reduced L. esculentum yield by 14, 68, and 70%, respectively. In contrast, yield of L. esculentum treated with D. higginsii at 106 conidia ml−1 was equal to that in the weed-free control. The rate of disease increase (r G) was higher in treatments with 106 conidia ml−1 (r G = 0.126 to 0.136) compared to 104 conidia ml−1 (r G = 0.046 to 0.050). At 106 conidia ml−1D. higginsii reduced the interference from C. rotundus, controlled C. rotundus better, and increased L. esculentum yield compared to the weedy checks.

Type
Weed Biology and Ecology
Copyright
Copyright © 1999 by the Weed Science Society of America 

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Footnotes

Current address: Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

References

Literature Cited

Bantilan, R. T., Palada, M. C., and Harwood, R. R. 1974. Integrated weed management: key factors affecting crop–weed balance. Philipp. Weed Sci. Bull. 1:1436.Google Scholar
Merger, R. D. 1981. Comparison of the Gompertz and logistic equations to describe disease progress. Phytopathology 71:716719.Google Scholar
Cousens, R. D. 1990. Considerations in design and analysis of competition experiments. Weed Sci. Soc. Am. Abstr. 30:297.Google Scholar
Gomez, K. A. and Gomez, A. A. 1984. Statistical Procedures for Agricultural Research. 2nd ed. New York: J. Wiley, pp. 467471.Google Scholar
Grichar, W. J., Nester, P. R., and Colbern, A. E. 1992. Nutsedge (Cyperus spp.) control in peanuts (Arachis hypogaea) with imazethapyr. Weed Technol. 6:393400.Google Scholar
Horsfall, J. G. and Barratt, R. W. 1945. An improved grading system for measuring plant disease. Phytopathology 35:655.Google Scholar
Jacobs, J. S., Sheley, R. L., and Maxwell, B. D. 1996. Effect of Sclerotinia sclerotiorum on the interference between bluebunch wheatgrass (Agropyron spicatum) and spotted knapweed (Centaurea maculosa). Weed Technol. 10:1321.Google Scholar
Kadir, J. 1997. Development of a Bioherbicide for the Control of Cyperus rotundus. . University of Florida, Gainesville, FL. 149 p.Google Scholar
Kadir, J. and Charudattan, R., 2000. Dactylaria higginsii. a bioherbicide agent for purple nutsedge (Cyperus rotundus). Biol. Control. In press.Google Scholar
Kadir, J. B., Charudattan, R., Berger, R. D., Stall, W. M., and Brecke, B. J. 1997a. Field efficacy of Dactylaria higginsii for control of Cyperus rotundus . Phytopathology 87:49.Google Scholar
Kadir, J. B., Charudattan, R., Stall, W. M., and Bewick, T. A. 1997b. Effect of Dactylaria higginsii on the interference of purple nutsedge with tomato and pepper. Phytopathology 87:50.Google Scholar
Keeley, P. E. 1987. Interference and interaction of purple nutsedge and yellow nutsedges (Cyperus rotundus and C. esculentus) with crops. Weed Technol. 1:7481.Google Scholar
Kennedy, A. C., Elliot, L. F., Young, F. L., and Douglas, C. L. 1991. Rhizobacter suppressive to the weed downy brume. Soil Sci. Soc. Am. J. 55:722727.Google Scholar
Marambe, B. 1996. Effect of defoliation on growth and physiological developments in tubers of purple nutsedge (Cyperus rotundus L.). J. Agron. Crop Sci. 176:323329.Google Scholar
Morales-Payan, J. P., Santos, B. M., Stall, W. M., and Bewick, T. A. 1998. Interference of purple nutsedge (Cyperus rotundus) population densities on bell pepper (Capsicum annuum) yield as influenced by nitrogen. Weed Technol. 12:230234.CrossRefGoogle Scholar
Nickel, S. E., Simmons, S. R., Sheaffer, C. C., and Radosevich, S. R. 1990. Addition series approach to assessing competition in a small grain–alfalfa companion crop community. Crop Sci. 30:11391141.Google Scholar
Pantone, D. J., Williams, W. A., and Maggenti, A. R. 1989a. An alternative approach for evaluating the efficacy of potential biocontrol agents of weeds. 1. Inverse linear model. Weed Sci. 37:771777.CrossRefGoogle Scholar
Pantone, D. J., Williams, W. A., and Maggenti, A. R. 1989b. An alternative approach for evaluating the efficacy of potential biocontrol agents of weeds. 2. Path analysis. Weed Sci. 37:778781.Google Scholar
Patterson, D. T. 1981. Effects of shading on the growth of purple and yellow nutsedges. Proc. South. Weed Sci. Soc. 34:230.Google Scholar
Paul, N. D. and Ayers, P. G. 1987. Effect of rust infection of Senecio vulgaris on competition with lettuce. Weed Res. 27:431441.Google Scholar
Santos, B. M., Morales-Payan, J. P., Stall, W. M., and Bewick, T. A. 1997. Influence of tuber size and shoot removal on purple nutsedge (Cyperus rotundus) regrowth. Weed Sci. 45:681683.Google Scholar
William, R. D. and Warren, G. F. 1975. Competition between purple nutsedge and vegetables. Weed Sci. 23:317323.Google Scholar