Hostname: page-component-6d856f89d9-nr6nt Total loading time: 0 Render date: 2024-07-16T08:37:39.012Z Has data issue: false hasContentIssue false

Biological Control of Stranglervine in Citrus–A Researcher's View

Published online by Cambridge University Press:  12 June 2017

W. H. Ridings*
Affiliation:
Dep. Plant Pathol. and Physiol., Clemson Univ., Clemson, SC 29631

Extract

Stranglervine (Morrenia odorata Lindl. # MONOD) was identified in 1957 at a commerical citrus grove in Florida. It is believed that this plant pest was introduced into Florida as an ornamental plant from South America. In the early 1960's, it became recognized as a serious weed pest that competed with the citrus trees for sunlight, water, and nutrients; girdled tree limbs; and interfered with spraying, harvesting, and irrigation practices. By the 1970's the vine was distributed throughout most of the citrus-growing areas in Florida. Control measures were limited to herbicides and mechanical cultivation. It was estimated that the cost of controlling this pest was $124/ha/yr. In many instances, control measures were inadequate to keep the vines from becoming established in the trees (11, 12, 13). Studies reported by El-Gholl (4) further demonstrated the inherent ability of this weed to persist.

Type
Research Article
Copyright
Copyright © 1986 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. Boccas, B. R. 1981. Interspecific crosses between closely related heterothallic Phytophthora species. Phytopathology 71:6065.CrossRefGoogle Scholar
2. Burnett, H. C., Tucker, D. P. H., Patterson, M. E., and Ridings, W. H. 1973. Biological control of milkweed vine with a race of Phytophthora citropthora . Proc. Fla. State Hortic. Soc. 86:111115.Google Scholar
3. Burnett, H. C., Tucker, D.P.H., and Ridings, W. H. 1974. Phytophthora root and stem rot of milkweed vine. Plant Dis. Rep. 58:355357.Google Scholar
4. El-Gholl, N. E., Ridings, W. H., and Schoulties, C. L. 1979. Factors affecting seed germination in vitro of the stranglervine, Morrenia odorata Lindl. Proc. Fla. State Hortic. Soc. 92:4345.Google Scholar
5. Feichtenberger, E., Zentmeyer, G. A., and Menge, J. A. 1984. Identity of Phytophthora isolated from milkweed vine. Phytopathology 74:5055.CrossRefGoogle Scholar
6. Ribeiro, O. K. 1978. A Sourcebook of the genus Phytophthora. J. Cramer, Vaduz. 417 pp.Google Scholar
7. Ribeiro, O. K. 1983. Physiology of asexual sporulation and spore germination in Phytophthora. Pages 5570 in Phytophthora, , Erwin, D. C., Bartnicki-Garcia, S., and Tsao, P. H., eds. Am. Phytopathol. Soc., St. Paul, MN.Google Scholar
8. Ridings, W. H., Burnett, H. C., Schoulties, C. L., and El-Gholl, N. E. 1976. Biological control of milkweed vine in Florida citrus groves with a pathotype of Phytophthora citrophthora . Pages 224240 in Proc. IV Int. Symp. on Biol. Control of Weeds, Freeman, T. E., ed. Univ. Florida, Gainesville.Google Scholar
9. Ridings, W. H., Schoulties, C. L., El-Gholl, N. E., and Mitchell, D. J. 1977. The milkweed vine pathotype of Phytophthora citrophthora as a biological control agent of Morrenia odorata . Proc. Int. Soc. Citric. 3:877881.Google Scholar
10. Ridings, W. H., Schoulties, C. L., Kannwischer, M. E., Woodhead, S. H., and El-Gholl, N. E. 1982. Pages 240241 in Biological Control of Weeds with Plant Pathogens, Charudattan, R. and Walker, H. L., eds. John Wiley and Sons, New York.Google Scholar
11. Ryan, G. F. and Knorr, L. C. 1967. Milkweed vine: A spreading menace in citrus groves. Citrus Ind. 48(5):8, 10, 30.Google Scholar
12. Swanson, W. F. 1975. Count Down for Agriculture. Designers Press of Orlando, Inc., Orlando, FL 338 pp.Google Scholar
13. Tucker, D.P.H., Phillips, R. L., and Jackson, J. L. 1971. The milkweed vine – current recommendations and promising new approaches. Proc. Fla. State Hortic. Soc. 84:4144.Google Scholar
14. Whiteside, J. O. 1970. Factors contributing to the restricted occurrence of citrus brown rot in Florida. Plant Dis. Rep. 54:608612.Google Scholar
15. Whiteside, J. O. 1971. Some factors affecting the occurrence and development of foot rot on citrus trees. Phytopathology 61:12331238.CrossRefGoogle Scholar