Dr. Robert McSorley (Advisor), Dr. Gary W. Simone, Dr. Robert Dunn, and Dr. Raymond N. Gallaher.

EDUCATION:

• Ph. D. program (current): Entomology and Nematology Department - University of Florida, Gainesville - Florida, concentration in Nematology with a minor in Plant Pathology. Thesis: Managing root-knot nematodes in greenhouse and microplot experiments with organic amendments.

• Master of Science: Degree in Fitossanidade (1982-1984) - Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul - Brasil. Her research dealt with diseases of yellow passion fruit (Passiflora edulis var. flavicarpa). Thesis: Mol‚stias do maracuj  amarelo (Passiflora edulis f. flavicarpa Deg.) em dois pomares instalados nos munic¡pios de Gua¡ba e Viam o, no Estado do Rio Grande do Sul.

• Bachelor of Science: Degree in Agronomy (1997-1980) - Federal University of Vi‡osa, Minas Gerais - Brasil.
• Elementary, Middle, and High School: Vit¢ria - Esp¡rito Santo - Brasil.

RESEARCH INTEREST :

Using organic amendments to manage plant-parasitic nematodes and plant diseases.

EXPERIENCE AND TRAINING:

• Assistant in Topography and Technical Design for Rural Construction and Home Environment at University of Vi‡osa, Minas Gerais - Brasil (1977 - 1979).
• Plant disease diagnosis at EMCAPA (a state agricultural research agency), Vit¢ria, Esp¡rito Santo (1979 - 1980).
• Irrigation at the University of Lavras, Minas Gerais, and worked in the Prov rseas program in the south of Bahia - Brasil (1981).
• Probor II, in Altamira, Para - Brasil (1981).
• She taught in an elementary school in Vit¢ria, Esp¡rito Santo (1981).
• 1985 - present: Researcher in Plant Pathology of EMBRAPA, Centro de Pesquisa Agroflorestal do Acre, Rio Branco, Acre - Brasil. Most of her work there was related to identification of plant diseases. She was responsible for collecting and maintaining a germplasm collection of cassava for evaluation and characterization, and management of web-blight disease by using organic amendments in black beans. She intends to continue her professional career with use of organic amendment to manage plant-parasitic nematodes and plant diseases.
• 1986 -1991 - Taught classes of Vegetable Crops and Plant Pathology at University of Acre, Rio Branco - Acre - Brasil.
• 1986 - 1990 - Delegado da Sociedade de Olericultura do Estado do Acre.
• 1987 - 1991 - Member of Plant Protection of the Acre State - (Defesa Sanit ria Vegetal do Estado do Acre).

• 1997 - Graduate Student Forum, University of Florida. Third Prize: Student Paper Competition, Biological Session.
• 1996 - Graduate Student Forum, University of Florida. Second Prize: Student Poster Competition, Biological Session.
• 1996 IFAS $100 Travel Grant
• October 1993 - October 1997 - Scholarship from EMBRAPA (a Brazilian agricultural research agency) for continuing her education in a Ph.D. program, at University of Florida, Gainesville - Florida - U. S. A.
• 1995 - Approved, through selection, to work in EMBRAPA as a plant pathology researcher, in the state of Acre, Brazil (Second Prize).
• March 1982 - June 1984 - Scholarship from EMBRAPA (a Brazilian agricultural research agency) for continuing her education, in University of Rio Grande do Sul, Porto Alegre - Rio Grande do Sul - Brasil.

PUBLICATIONS:

1. Ritzinger, C. H. S. P., and R. McSorley. 1997. Effect of fresh and dry organic amendments on Meloidogyne arenaria in greenhouse experiments. Nematropica (In press).
2. Ritzinger, C. H. S. P., and R. McSorley. 1997. Effect of castor and velvetbean organic amendments on Meloidogyne arenaria in greenhouse experiments. Supplement to the Journal of Nematology (In press).
3. Ritzinger, C. H. S. P., R. McSorley, and R. N. Gallaher. 1997. Effect of nematode level (Meloidogyne arenaria race 1) and mulch type on Clemson Spineless' okra in microplot experiments. Supplement to the Journal of Nematology (In press).
4. Ritzinger, C. H. S. P., and R. McSorley. 1996. Effect of organic amendments on Meloidogyne arenaria population in potted soil. Third International Nematology Congress. Guadeloupe. July 1996.
5. Ritzinger, C. H. S. P., and R. McSorley. 1995. Effect of Meloidogyne arenaria population level and mulch type on okra. Journal of Nematology 27:517-518.
6. Buhr, K. L., R. N. Gallaher, R. McSorley, W. G. Harris, D. M. Sylvia, C. H. S. P. Ritzinger, J. Velasquez-Pereira, N. S. K. Hash, M. D. Mehrothra, Y. Singh, and R. K. Tiwari. 1996. Problem-solving through hands-on, multiciplinary learning experiences in the "real-world" laboratory. American Society of Agronomy 88 (In press).
7. Gallaher, R. N., K. L. Buhr, R. McSorley, W. G. Harris, D. M. Sylvia, C. H. S. P. Ritzinger, J. Velasquez-Pereira, and R. K. Tiwari. 1996. Cooperative diagnosis of cotton (Gossypium hirsutum) crop growth and yield; Impact on professor-student interaction for improved instruction. Agronomy Research Report AY-96-02.
8. Ritzinger, C. H. S. P., J. Velasquez-Pereira, R. N. Gallaher, K. L. Buhr, and R. McSorley. 1995. Cotton disorders associated with plant nutrition status, soil fertility, and nematode occurrence. Agronomy Research Reporter AY-95-08.
9. Ritzinger, C. H. S. P., R. McSorley, and R. N. Gallaher. 1996. Effect of organic amendment placement and inoculum density of Meloidogyne incognita on okra seedlings. Soil and Crop Science Society Florida Proceedings. 56: (In press).
10. Ritzinger, C. H. S. P., R. P. De Oliveira, R. M. F. Vi‚gas 1992. Influˆncia do pH, cobertura morta e ‚poca de plantio na incidˆncia da mela do feijoeiro. EMBRAPA-CNPAF/Acre. Boletim de Pesquisa, 4. 31p.
11. Kitajima, E. W., P. B. de S , C. H. S. P. Ritzinger. 1991. Detec‡ o de part¡culas do tipo Rhabdovirus em algumas compostas, abobreira e mamoeiro. Fitopatologia Brasileira 16:141-144.

REFERENCES

• Dr. Robert McSorley - Professor
  Entomology and Nematology Department
  Institute of Food and Agricultural Sciences
  Building 970, Hull Road
  PO Box 110620
  Phone: (352) 392-1901
  Fax: (352) 392-0190
  E-mail: rmcs@ifas.ufl.edu
  

• Dr. F. William Zettler - Professor
  Plant Pathology Department
  Institute of Food and Agricultural Sciences
  1453 Fifield Hall
  PO Box 110680
  Gainesville, FL 32611-0680 - U. S. A.
  Phone: (352) 392- 7245
  Fax: (352) 392-6532
  E-mail: fwz@ifas.ufl.edu
  

• Dr. Miguel Dalmo de Menezes Porto - Professor
  Department of Fitossanidade
  Federal University of Rio Grande do Sul
  91500 -000 Porto Alegre - Rio Grande do Sul - Brasil
  

• Dr. Luiz A. Maffia - Professor
  Department of Plant Pathology
  Federal University of Vi‡osa
  36571 - 000 Vi‡osa - Minas Gerais
  Phone: (031) 899 - 2630
  Fax: (031) 899 - 2240
  E-mail: lmaffia@mail.ufl.br
  

• EMBRAPA
  Coordenadoria de Apoio e Desenvolvimento
  Departamento de Recursos Humanos
  SAIN -Parque Rural
  70770-901 - Bras¡lia - Distrito Federal - Brasil
  E-mail: liberal@sede.embrapa.br
  Phone: (061) 348-4433
  Fax: (061) 347-1041
  

• EMBRAPA - Chefe do CNPAF - ACRE
  Rodovia BR-364, Km 14, Caixa postal 392
  69901 - 180 - Rio Branco, Acre - Brasil
  Phone (068) 224-3933, 224-3932
  Fax: (068) 224-4035