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Ken  
Esmsun2.gif (541 bytes) TITLE: Professor
Esmsun2.gif (541 bytes) DEPARTMENT: Plant Pathology
Esmsun2.gif (541 bytes) SPECIALTY: Pest Management, Phytobacteriology
Esmsun2.gif (541 bytes) TELEPHONE: 561-993-1561
Esmsun2.gif (541 bytes) SUNCOM: 233-1561
Esmsun2.gif (541 bytes) E-MAIL: klp@ifas.ufl.edu
 
Kenneth L. Pernezny
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Responsibilities:

Extension:  Development and support of vegetable IPM programs in Florida.
Research:  Etiology and epidemiology of bacterial diseases of vegetables.

Major accomplishments:

We have established a number of successful IPM programs on Florida vegetables beginning with 365 acres of tomatoes in 1976-77 that now includes about 50,000 acres of tomatoes, peppers, snap beans, strawberries, squash and other vegetables throughout the state. Florida is now considered one of the U.S. leaders in vegetable IPM. We have also identified bacterial pathogens of cocoyam, celery, lettuce, and cilantro. We have helped identify races of Xanthomonas campestris pv. vesicatoria causing bacterial spot of tomato and pepper in southern Florida. Losses in commercial pepper production are much less in recent years in part due to our involvement in extension programs to educate growers about resistant cultivars.

Professional activities:

Chairman of APS Tropical Plant Pathology Committee, 1991-92; member 1988-93.
Member of APS Plant Disease Names Committee, 1990-93.

International Programs:

International Research and Exchange Scholar, Prague, Czech Republic,1993. Phytobacteriologist at the Research Institute for Crop Production.

Grants and Contracts:

Total of $370,240 from diverse sources, including USDA Extension, Florida Tomato Exchange, Florida Bell Pepper Exchange, and Agrichemical companies.

Graduate Students:

Member of 3 Ph.D. committees and 2 M.S. committees. Chairmen of one M.S. committee.

Career Publications:

37 refereed publications, one Ag. Exp. Station Bull., two scouting manuals, 120 extension publications.

Selected publications in last five years:

Refereed:

Pernezny, K., Collins, J., Stall, R.E., Shuler, K., and Datnoff, L.E. 1999. A serious outbreak of race 6 of Xanthomonas campestris pv. vesicatoria on pepper in southern Florida. Plant Dis. 83:79.

Jones, J.B., Bouzar, H., Somodi, G.C., Stall, R.E., Pernezny, K., El-Morsy, G., and Scott, J.W. 1998. Evidence for the preemtive nature of tomato race 3 of Xanthomonas campestris pv. vesicatoria in Florida. Phytolpathology 88:33-88.

Pernezny, K., and Collins, J. 1997. Epiphytic populations of Xanthomonas campestris pv. vesicatoria on pepper: Relationships to host-plant resistance and exposure to copper sprays. Plant Dis. 81:791-794.

Pernezny, K., Kudela, V., Kokoskova, B., and Hladka, I. 1995. Bacterial diseases of tomato in the Czech and Slovak Republics and lack of streptomycin resistance among copper-tolerant strains. Crop Protect. 14:267-270.

Pernezny, K., Datnoff, L. E., Mueller, T., and Collins, J. 1996. Losses in fresh-market tomato production in Florida due to target spot and bacterial spot and the benefits of protectant fungicides. Plant Dis: 80:559-563.

Pernezny, K., Datnoff, L., and Sommerfeld, M. L. 1994. Brown stem of celery caused by Pseudomonas cichorii. Plant Dis. 78:150-153.

Pohronezny, K., Schuster, D. J., Tyson, R., Gilreath, R., Mitchell, R., Brown, R., Waddill, V., McSorley, R., Price, J., Summerhill, W., Dankers, W., and Sprenkel, R. 1989. The impact of integrated pest management on selected vegetable crops in Florida. Fla. Ag. Exp. Stn. Bull. No. 875. 67 pp.

Non-refereed:

Pernezny, K., and Kucharek, T. 1999. Scouting diseases of tomatoes and peppers. IFAS Coop. Ext. Serv. Circ. No. 1225. 31 lam. color plates (flash card set).

Pernezny, K., Schuster, D., Stansly, P., Simone, G., Waddill, V., Funderburk, J., Johnson, F., Lentini, R., and Castner, J. 1996. Florida Tomato Scouting Guide. 2nd ed. Univ. Fla. Coop. Ext. Serv. Pub. No. SP-22. 45 pp.

Stall, R. E., Jones, J. B., and Pohronezny, K. 1993. Characterization and detection of strains of the pathogen of bacterial spot of tomato by monoclonal antibodies and DNA amplification. Pages 26-29 in: Rep. of Tomato Res. Ann. Rep. to Fla. Tomato Comm.

Pernezny, K., and Litz, R. E. 1993. Some common diseases of papaya in Florida. Plant Path. Ext. Rep. No. PP-35. (electronic).

Pernezny, K., and Kucharek, T. 1993. Rust diseases of several legumes and corn in Florida. Plant Path. Ext. Rep. No. PP-37.

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