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Effect of Johnsongrass (Sorghum halepense) Control on the Severity of Virus Diseases of Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

John W. Eberwine Jr.  and
Edward S. Hagood Jr.
John W. Eberwine Jr.
Affiliation:
Dep. Plant Pathol., Physiol., and Weed Sci., Va. Polytech. Inst. and State Univ., Blacksburg, VA 24061
Edward S. Hagood Jr.
Affiliation:
Dep. Plant Pathol., Physiol., and Weed Sci., Va. Polytech. Inst. and State Univ., Blacksburg, VA 24061
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Abstract

Field experiments were conducted to evaluate the hypothesis that johnsongrass control in corn causes increased maize dwarf mosaic virus (MDMV) and maize chlorotic dwarf virus (MCDV) disease severity because of increased movement of insect vectors from dying johnsongrass to the corn crop. Johnsongrass control treatments included 1) broadcast POST nicosulfuron, 2) directed POST imazethapyr, 3) mechanical control, and 4) no treatment. Disease severity in both a virus-susceptible and a virus-tolerant corn hybrid was evaluated. With the virus-susceptible hybrid, greater disease severity was observed where johnsongrass was controlled in the experimental area than where johnsongrass was not controlled. Increases in disease severity were independent of the method of johnsongrass control. Corollary studies conducted on the same site verified a double infection of corn with MDMV and MCDV and documented movement of blackfaced leafhoppers, the insect vector of MCDV, subsequent to treatment of johnsongrass.

Keywords

Imazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidnicosulfuron, 2-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-N,N-dimethyl-3-pyridinecarboxamidejohnsongrass, Sorghum halepense [L.] Pers. # SORHAcorn, Zea mays L. ‘Southern States 565,’ ‘Southern States 844’blackfaced leafhopper, Graminella nigrifrons (Forbes).Maize chlorotic dwarf virusMCDVmaize dwarf mosaic virusMDMVimazethapyrnicosulfuronprimisulfuronSORHA
Type
Research
Information
Weed Technology , Volume 9 , Issue 1 , March 1995 , pp. 73 - 79
Copyright
Copyright © 1995 by the Weed Science Society of America 

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References

Literature Cited

1. Eberwine, J. W. Jr., Hagood, E. S. Jr., and Kenley, C. C. 1992. Effect of virus diseases on corn as influenced by variety and johnsongrass control method. Proc. South. Weed. Sci. Soc. 45:78.Google Scholar
2. Eberwine, J. W. Jr., Hagood, E. S. Jr., and Stromberg, E. L. 1993. Effect of johnsongrass (Sorghum halepense) control on insect vector movement and virus transmission in corn. Proc. South. Weed Sci. Soc. 46:365.Google Scholar
3. Eberwine, J. W. Jr., Hagood, E. S. Jr., and Stromberg, E. L. 1993. Increased virus incidence and severity in corn as affected by postemergence johnsongrass (Sorghum halepense [L.] Pers.) control. Phytopathology 83:695.Google Scholar
4. Foy, C. L. and Witt, H. L. 1990. Johnsongrass control with DPX-V9360 and CGA136872 in corn (Zea mays) in Virginia. Weed Technol. 4:615–619.Google Scholar
5. Gordon, D. T., Bradfute, O. E., Gingery, R. E., Knoke, J. K., Louie, R., Nault, L. R., and Scott, G. E. 1981. Introduction: History, geographical distribution, pathogen characteristics, and economic importance. p. 1–12 in Gordon, D. T., Knoke, J. K., and Scott, G. E., eds. Virus and Viruslike Diseases of Maize in the United States. South. Coop. Ser. Bull. 247. June 1981. Ohio Agric. Res. and Dev. Cent., Wooster, OH.Google Scholar
6. Gordon, D. T. and Nault, L. R. 1977. Involvement of maize chlorotic dwarf virus and other agents in stunting diseases of Zea mays in the United States. Phytopathology 67:27–36.Google Scholar
7. Hagood, E. S. Jr., Wilcut, J. W., Wilson, H. P., Ritter, R. L., and Webb, F. J. 1990. Weed control in corn. p. 53–68 in Pest Management Guide for Field Crops. Va. Coop. Ext. Serv. Pub. 456-015.Google Scholar
8. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds, Distribution and Biology. Univ. Press of Hawaii, Honolulu, HI. p. 54–61.Google Scholar
9. Josephson, L. M., Hilty, J. W., Arnold, J. M., Kincer, H. C., and Overton, J. R. 1969. Grain yield of corn reduced by maize dwarf mosaic virus infection. Plant Dis. Rep. 53:61–63.Google Scholar
10. Kramer, J. P. 1967. A taxonomic study of Graminella nigrifrons, a vector of corn stunt disease, and its congeners in the United States (Homoptera: Cicadellidae: Deltocephalinae). Ann. Entomol. Soc. Am. 60:604–616.Google Scholar
11. Nault, L. R. and Knoke, J. K. 1981. Maize vectors. p. 77–84 in Gordon, D. T., Knoke, J. K., and Scott, G. E., eds. Virus and Viruslike Diseases of Maize in the United States. South. Coop. Serv. Bull. 247. June 1981. Ohio Agric. Res. and Dev. Cent., Wooster, OH.Google Scholar
12. Ngouajio, M. and Hagood, E. S. Jr. 1993. Weed control in corn (Zea mays) with primisulfuron as influenced by rate, timing, and herbicide combinations. Weed Technol. 7:65–69.Google Scholar
13. Rosenkranz, E. and Scott, G. E. 1978. Effect of plant age at time of inoculation with maize dwarf mosaic virus on disease development and yield in corn. Phytopathology 68:1688–1692.Google Scholar
14. Scheifele, G. L. 1969. Effects of early and late inoculation of maize dwarf mosaic virus strain A and B on shelled grain yields of susceptible and resistant maize segregates of a three-way hybrid. Plant Dis. Rep. 53:345–347.Google Scholar
15. Schnappinger, M. G., Ritter, R. L., Hagood, E. S., Sperow, C. B., and Baniecki, J. F. 1992. Corn varietal tolerance to viral disease as influenced by primisulfuron applications to johnsongrass in 1991. Proc. Northeast. Weed Sci. Soc. 46:114.Google Scholar
16. Shurtleff, M. C., ed. 1980. Compendium of Corn Diseases. American Phytopathological Society. St. Paul, MN. p. 60–63.Google Scholar
17. Stevens, W. E., Johnson, J. R., and Horst, H. R. 1986. Preemergence and preplant incorporated herbicides for control of johnsongrass in corn. Res. Rep.-Mississippi Agric. For. Exp. Stn. VII(6). 2 p.Google Scholar
18. VanGessel, M. J. and Coble, H. D. 1993. Maize dwarf mosaic virus severity in corn when infected johnsongrass is controlled with a postemergence herbicide. Weed Sci. 41:262–268.Google Scholar