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Hairy Nightshade (Solanum sarrachoides) Competition with Two Potato Varieties

  • Pamela J. S. Hutchinson (a1), Brent R. Beutler (a2) and JaNan Farr (a2)


Greenhouse and field trials were conducted at the Aberdeen Research and Extension Center to determine the effect of hairy nightshade competition on two potato varieties with different growth habits. Greenhouse replacement trials included treatments of three plants total in each pot with potato : hairy nightshade ratios of 3 : 0, 2 : 1, 1 : 2, or 0 : 3. Varieties tested were ‘Russet Burbank’ and ‘Russet Norkotah’. Greenhouse-grown hairy nightshade (cotyledon to one-leaf stage) were transplanted into pots earlier than or at the same time as potato plant emergence. As the number of Russet Burbank plants per pot decreased, potato plant biomass dry weight (average per plant) increased, regardless of hairy nightshade number or transplant time. When hairy nightshade were transplanted before Russet Norkotah emergence, potato plant biomass dry weight per plant was similar, regardless of potato : nightshade ratio. Field trials were conducted with Russet Burbank and Russet Norkotah in 2004 and 2005. At potato emergence, greenhouse-grown hairy nightshade plants (one- to two-leaf) were transplanted in between potato rows at densities of 0, 1, 2, or 3 plants m−1 row, and solid-seeded at approximately 100 plants m−1 row. Hairy nightshade biomass, stem and berry number, and seeds per berry were reduced by competition from Russet Burbank due to the amount and duration of shading, as compared with Russet Norkotah. Russet Burbank U.S. No. 1 and total tuber yields in plots with 1 hairy nightshade plant m−1 row were similar to weed-free control yields, whereas yields in plots with 2, 3, or 100 m−1 row were reduced in comparison. In contrast, Russet Norkotah yields were reduced when only 1 hairy nightshade plant m−1 row was present. Overall, Russet Norkotah were less competitive with hairy nightshade than Russet Burbank in both the greenhouse replacement and field trials.


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Allen, T. C. and Davis, J. R. 1982. Distribution of tobacco rattle virus and potato virus X in leaves, roots and fruits and/or seeds of naturally infected weeds. Am. Potato J. 59:149153.
Alvarez, J. M. and Hutchinson, P. J. S. 2005. Managing nightshade plants to reduce potato viruses and insect vectors. Outlooks Pest Manag. 16:249252.
Alvarez, J. M., Stoltz, R. L., Baird, C. R., and Sandvol, L. E. 2003. Insects and their management. Pages 205239 in Stark, J. C. and Love, S. L., eds. Potato Production Systems. Moscow, ID University of Idaho Agriculture Communications.
Basset, I. J. and Munro, D. B. 1985. The biology of Canadian weeds. 67. Solanum ptycanthum Dun., S. nigrum L. and S. sarrachoides Sendt. Can. J. Plant Sci. 65:410414.
Bazirmakenga, R. and Leroux, G. D. 1998. Economic and interference threshold densities of quackgrass (Elytrigia repens) in potato (Solanum tuberosum). Weed Sci. 46:176180.
Blackshaw, R. E. 1991. Hairy nightshade (Solanum sarrachoides) interference in dry beans (Phaseolus vulgaris). Weed Sci. 39:4853.
Conley, S. P., Binning, L. K., and Connell, T. R. 2001. Effect of cultivar, row spacing, and weed management on weed biomass, potato yield, and net crop value. Am. J. Potato Res. 78:3137.
Connell, T. R., Binning, L. K., and Schmitt, W. G. 1999. A canopy development model for potatoes. Am. J. Potato Res. 76:153159.
Cousens, R. 1991. Aspects of the design and interpretation of competition (interference) experiments. Weed Technol. 5:664673.
Crotser, M. P. and Masiunas, J. B. 1998. The effect of weed-free period and nitrogen on eastern black nightshade (Solanum ptycanthum) competition with English pea (Pisum sativum). Hort. Sci. 33:8891.
Crotser, M. P. and Witt, W. W. 2000. Effect of Glycine max canopy characteristics, G. max interference, and weed-free period on Solanum ptycanthum growth. Weed Sci. 48:2026.
Eberlein, C. V., Barkdoll, A. W., and Davis, J. R. 1991. Pathogenicity of Colletotrichum coccodes isolates to potato (Solanum tuberosum) and two nightshade (Solanum spp.) species. Weed Technol. 5:570574.
Eberlein, C. V., Guttieri, M. J., and Schaffers, W. C. 1992. Hairy nightshade (Solanum sarrachoides) control in potatoes (Solanum tuberosum) with bentazon plus additives. Weed Technol. 6:8590.
Eberlein, C. V., Whitmore, J. C., Stanger, C. E., and Guttieri, M. J. 1994. Postemergence weed control in potatoes (Solanum tuberosum) with rimsulfuron. Weed Technol. 8:428435.
González-Ponce, R. G., Zancada, C., Verdugo, M., and Salas, L. 1996. Plant height as a factor in competition between black nightshade and two horticultural crops (tomato and pepper). J. Hort. Sci. 71:453460.
Hermanutz, L. A. and Weaver, S. E. 1991. Germination and growth of Solanum ptycanthum and Solanum sarrachoides . Can. J. Plant Sci. 71:167174.
Holt, J. S. 1995. Plant responses to light: a potential tool for weed management. Weed Sci. 43:474482.
Hutchinson, P. J. S. 2005. Outlook herbicide for weed control in potatoes. CIS 1126. Moscow, ID University of Idaho Education Communications. 4 p.
Hutchinson, P. J. S. 2007. A comparison of flumioxazin and rimsulfuron tank mixtures for weed control in potato. Weed Technol. 21:10231028.
Hutchinson, P. J. S., Beutler, B. R., and Hancock, D. M. 2006. Desiccant evaluations: late-season hairy nightshade (Solanum sarrachoides) control and seed response. Weed Technol. 20:3740.
Hutchinson, P. J. S. and Eberlein, C. V. 2003. Weed management. Pages 241283 in Stark, J. C. and Love, S. L., eds. Potato Production Systems. Moscow, ID University of Idaho Agriculture Communications.
Hutchinson, P. J. S., Eberlein, C. V., Kral, C. W., and Guttieri, M. J. 2005a. Using Matrix in weed management systems for potatoes. CIS 1037. Moscow, ID University of Idaho Education Communications. 8 p.
Hutchinson, P. J. S., Eberlein, C. V., and Tonks, D. J. 2004. Broadleaf weed control and potato (Solanum tuberosum) crop safety with postemergence rimsulfuron, metribuzin, and adjuvant combinations. Weed Technol. 18:750756.
Hutchinson, P. J. S., Ransom, C. V., Boydston, R. A., and Beutler, B. R. 2005b. Dimethenamid-p: weed control and potato (Solanum tuberosum) variety tolerance. Weed Technol. 19:966971.
Hutchinson, P. J. S., Tonks, D. J., and Beutler, B. R. 2003. Efficacy and economics of weed control programs in glyphosate-resistant potato (Solanum tuberosum). Weed Technol. 17:854865.
Ivany, J. A. 1986. Quackgrass competition effect on potato yield. Can. J. Plant Sci. 66:185187.
Kilkenny, Z. A. 1995. Emergence and Growth of Common Annual Weeds Under Varied Levels of Shade. , University of Wisconsin, Madison, WI. 92 pp.
Liebman, M., Drummond, F. A., Corson, S., and Zhang, J. 1996. Tillage and rotation crop effects on weed dynamics in potato production systems. Agron. J. 88:1826.
Love, S. L., Eberlein, C. V., Stark, J. C., and Bohl, W. H. 1995. Cultivar and seedpiece spacing effects on potato variety competitiveness with weeds. Am. J. Potato Res. 72:197213.
Love, S. L., Novy, R., Corsini, D. L., and Bain, P. 2003. Variety selection and management. Pages 2147 in Stark, J. C. and Love, S. L., eds. Potato Production Systems. Moscow, ID University of Idaho Agriculture Communications.
McGiffen, M. E. Jr., Masiunas, J. B., and Hesketh, J. D. 1992. Competition for light between tomatoes and nightshades (Solanum nigrum or S. ptycanthum). Weed Sci. 40:220226.
Miller, T. W. and Parker, R. 2006. Nightshade biology and control in the Pacific Northwest. PNW 0588. Extension and Station Communications. Corvallis, OR Oregon State University. 8 p.
Nelson, D. C. and Giles, J. F. 1989. Weed management in two potato (Solanum tuberosum) cultivars using tillage and pendimethalin. Weed Sci. 37:228232.
Nelson, D. C. and Thoreson, M. C. 1981. Competition between potatoes (Solanum tuberosum) and weeds. Weed Sci. 29:672677.
Ogg, A. G. Jr., and Dawson, J. H. 1984. Time of emergence of eight weed species. Weed Sci. 32:327335.
Ogg, A. G. Jr., and Rogers, B. S. 1989. Taxonomy, distribution, biology, and control of black nightshade (Solanum nigrum) and related species in the United States and Canada. Rev. Weed Sci. 4:2558.
Park, S. E., Benjamin, L. R., and Watkinson, A. R. 2003. The theory and application of plant competition models: an agronomic perspective. Ann. Bot. 92:741748.
Quakenbush, L. S. and Andersen, R. N. 1984. Distribution and biology of two nightshades (Solanum spp.) in Minnesota. Weed Sci. 32:529533.
Raby, B. J. and Binning, L. K. 1985. Weed competition and study in ‘Russet Burbank’ and ‘Superior'potato (Solanum tuberosum) with different management practices. Proc. North Cent. Weed Control Conf. 40:4 p.
Roberts, H. A. and Boddrell, J. E. 1983. Field emergence and temperature requirements for germination in Solanum sarrachoides Sendt. Weed Res. 23:247252.
Saghir, A. R. and Markoullis, G. 1974. Effects of weed competition and herbicides on yield and quality of potatoes. Proc. British Weed Control Conf. 12:533539.
Sattin, M., Zuin, M. C., and Sartorato, I. 1994. Light quality beneath field-grown maize, soybean, and wheat canopies—red:far red variations. Physiol. Plant. 91:322328.
Selleck, G. W. and Dallyn, S. L. 1978. Herbicide treatments and potato cultivar interactions for weed control. Northeast Weed Sci. Soc. Proc. 32:152156.
Singh, R. D., Gupta, R. K., Venugropal, K., and Singh, G. B. Undated. Evaluation of weed free maintenance for mustard and potato in Sikkim. Proc. Indian Soc. Weed Sci. Pages 69 p.
Srinivasan, R. and Alvarez, J. M. 2008. Hairy nightshade as a potential Potato leafroll virus (Luteoviridae: Polerovirus) inoculum source in Pacific Northwest potato ecosystems. Phytopathology. 98:985991.
Srinivasan, R., Alvarez, J. M., Eigenbrode, S. D., and Bosque-Perez, N. A. 2006. Influence of hairy nightshade Solanum sarrachoides (Sendtner) and Potato leafroll virus (Luteoviridae: Polerovirus) on the host preference of Myzus persicae (Sulzer) (Homoptera: Aphididae). Environ. Entomol. 35:546553.
Stoller, E. W. and Myers, R. A. 1989a. Effects on shading and soybean (Glycine max L.) interference in Solanum ptycanthum Dunal (eastern black nightshade) growth and development. Weed Res. 29:307316.
Stoller, E. W. and Myers, R. A. 1989b. Response of soybeans (Glycine max) and four broadleaf weeds to reduced irradiance. Weed Sci. 37:570574.
Sweet, R. D. and Sieczka, J. B. 1973. Comments on ability of potato varieties to compete with weeds. Proc. Northeast Weed Sci. Soc. 27:302304.
Thakral, K. K., Pandita, M. L., Khurana, S. C., and Kalloo, G. 1989. Effect of time of weed removal on growth and yield of potato. Weed Res. 29:3338.
Thomson, C. E. and Witt, W. W. 1987. Germination of cutleaf groundcherry (Physalis angulata), smooth groundcherry (Physalis virginiana), and eastern black nightshade (Solanum ptycanthum). Weed Sci. 35:5862.
Vangessel, M. J. and Renner, K. A. 1990. Redroot pigweed (Amaranthus retroflexus) and Echinochloa crus-galli) interference in potatoes (Solanum tuberosum). Weed Sci. 38:338343.
Vitolo, D. B. and Ilnicki, R. D. 1985. Grass competition in white potatoes. Weed Sci. Soc. Am. 30:25. [Abstract].
Webb, R. E., Wilson, D. R., Shumaker, J. R., Graves, B., Henniger, M. R., Watts, J., Frank, J. A., and Murphy, H. J. 1978. Atlantic: a new potato variety with high solids, good processing, and resistance to pests. Am. Potato J. 55:141145.
Weigelt, A. and Jolliffe, P. 2003. Indices of plant competition. J. Ecol. 91:707720.
Zhou, J., Deckard, E. L., and Ahrens, W. H. 2005. Factors affecting germination of hairy nightshade (Solanum sarrachoides) seeds. Weed Sci. 53:4145.



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