Ph.D. in Plant Pathology, Auburn University, 1999
M.S. in Plant Pathology, Beijing Agricultural University, China, 1988
Research Interests and Current Efforts
Ecology, epidemiology and management of diseases on vegetable crops. Current efforts focus on Phytophthora blight (Phytophthora capsici) and diseases caused by oomycetes and other pathogens such as Fusarium wilt, bacterial wilt, southern blight, downy mildew, and gummy stem blight. One of my primary objectives is to develop integrated approaches for management of vegetable diseases, including the use of cultural practices, host resistance, chemicals, biologicals, and other ecological and genetic manipulations. Research in my lab is also directed towards detection, identification, and analysis of genetic diversity of pathogens causing vegetable diseases
Recent Book Chapters
Momol, T., Ji, P., and McCarter, S. M. 2014. Bacterial wilt. Compendium of Tomato Diseases and Pests (Jones, J. B. et al., eds). APS Press, St. Paul, MN.
Momol, T., Ji, P., and Jones, J. P. 2014. Didymella stem rot. Compendium of Tomato Diseases and Pests (Jones, J. B. et al., eds). APS Press, St. Paul, MN.
Hong, J. C., Ji, P., Momol, M. T., Olson, S., Pradhanang, P., and Jones, J. B. 2014. Ralstonia solanacearum: a case study of a bacterial pathogen in irrigation water. In: Biology, Detection and Management of Pathogens in Irrigation Water (Hong et al., eds.). APS Press, St. Paul, MN.
Recent Journal Articles
Petkar, A., Langston, D. B., Buck, J. W., Stevenson, K. L., and Ji, P. 2016. Sensitivity of Fusarium oxysporum f. sp. niveum to prothioconazole and thiophanate-methyl and gene mutation conferring resistance to thiophanate-methyl. Plant Dis. (in press).
Qu, T., Gao, S., Li, J., Hao, J. J., and Ji, P. 2016. Synthesis and antifungal activity of 2-allylphenol derivatives against fungal plant pathogens. Pestic. Biochem. Physiol. (in press).
Parkunan, V., Timper, P., and Ji, P. 2016. Lack of influence of Meloidogyne incognita on resistance of bell pepper cultivars to Phytophthora capsici. Can. J. Plant Pathol. 37:375-381.
Qu, T., Grey, T. L., Csinos, A. S., and Ji, P. 2016. Translocation of oxathiapiprolin in bell pepper plants and systemic protection of plants against Phytophthora blight. Plant Dis. 100:1931-1936.
Li, Y., Geng, X., Ji, P., Wang, C., and Wei, S. 2016. Isolation and evaluation of a Bacillus methylotrophicus strain for control of corn stalk rot. Biocontrol Sci. Technol. 26:727-731.
Qu, T., Shao, Y., Csinos, A. S., and Ji, P. 2016. Sensitivity of Phytophthora nicotianae from tobacco to fluopicolide, mandipropamid and oxathiapiprolin. Plant Dis. 100:2119-2125.
Li, Y., Huang, M., Sun, L., and Ji, P. 2016. Occurrence of leaf spot of calabash caused by Nigrospora sphaerica in Georgia. Plant Dis. 100:1506.
Wu, T., Milner, H., Diaz-Perez, J. C., and Ji, P. 2015. Effects of soil management practices on soil microbial communities and development of southern blight in vegetable production. Appl. Soil Ecol. 91:58-67.
Ji, P., and Csinos, A. S. 2015. Effect of oxathiapiprolin on asexual life stages of Phytophthora capsici and disease development on vegetables. Ann. Appl. Biol. 166:229-235.
Yang, L., Fountain, J. C., Wang, H., Ni, X., Ji, P., Lee, R. D., Kemerait, R. C., Scully, B. T., and Guo, B. 2015. Stress sensitivity is associated with differential accumulation of reactive oxygen and nitrogen species in maize genotypes with contrasting levels of drought tolerance. Int. J. Mol. Sci. 16:24791-24819.
Li, S., Song, Q., Ji, P., and Cregan, P. 2015. Draft genome sequence of Phomopsis longicolla type strain TWH P74. GenomeA 3(1):e00010-15. doi:10.1128/genomeA.00010-15.
Li, Y., and Ji, P. 2015. First report of fruit rot on watermelon caused by Fusarium equiseti in Georgia in the U.S. Plant Dis. 99:1272.
Abbas, M., Khan, M. M., Mughal, S. M., and Ji, P. 2015. Comparison of infection of Citrus tristeza closterovirus in Kinnow mandarin (Citrus reticulata) and Musambi sweet orange (Citrus sinensis) in Pakistan. Crop Prot. 78:146-150.
Finger, M. J., Parkunan, V., Ji, P., and Stevenson, K. L. 2014. Allele-specific PCR for the detection of azoxystrobin resistance in Didymella bryoniae. Plant Dis. 98:1681-1684.
Ji, P., Csinos, A. S., Hickman, L. L., and Hargett, U. 2014. Efficacy and application methods of oxathiapiprolin for management of black shank on tobacco. Plant Dis. 98:1151-1154.
Parkunan, V., Brenneman, T. B., and Ji, P. 2014. First report of Pythium deliense associated with peanut pod rot in Georgia. Plant Dis. 98:1269.
Parkunan, V., and Ji, P. 2013. Isolation of Pythium litorale from irrigation ponds used for vegetable production and its pathogenicity on squash. Can. J. Plant Pathol. 35:415-423.
Parkunan, V., and Ji, P. 2013. First report of leaf spot on onion caused by Fusarium acuminatum in Georgia. Plant Dis. 97:1384.
Sanogo, S., and Ji, P. 2013. Water management in relation to control of Phytophthora capsici in vegetable crops. Agr. Water Manage. 129:113-119.
Parkunan, V., Gitaitis, R. D., Dutta, B., Langston, D. B., and Ji, P. 2013. An epidemic of downy mildew caused by Peronospora destructor on Vidalia sweet onions in Georgia. Plant Health Progress doi:10.1094/PHP 2013-0328-01-BR.
Parkunan, V., Li, S., Fonsah, E. G., and Ji, P. 2013. First report of Alternaria leaf spot of banana caused by Alternaria alternata in the United States. Plant Dis. 97:1116.
Jackson, K. L., Yin, J., and Ji, P. 2012. Sensitivity of Phytophthora capsici from vegetable crops in Georgia to mandipropamid, dimethomorph, and cyazofamid. Plant Dis. 96:1337-1342.
Sanogo, S., and Ji, P. 2012. Integrated management of Phytophthora capsici on solanaceous and cucurbitaceous crops: current status, gaps in knowledge, and research needs. Can. J. Plant Pathol. 34:479-492.
Ji, P., Koné, D., Yin, J., Jackson, K. L., and Csinos. A. S. 2012. Soil amendments with Brassica cover crops for management of Phytophthora blight on squash. Pest Manag. Sci. 68:639-644.
Wei, W., Xu, Y. L., Li, S. X., Liu, J. B., Han, X. Z., Li, W. B., and Ji, P. 2012. Analysis of fusarium populations in a field under different fertilization management by denaturing gradient gel electrophoresis. J. Plant Pathol. 94:119-126.
Ji, P., Yin, J., and Jackson, K. L. 2012. First report of root rot caused by Fusarium solani on Benincasa hispida in the United States. Plant Dis. 96:294.
Yin, J., Jackson, K. L., Candole, B. L., Csinos. A. S., Langston, D. B., and Ji, P. 2012. Aggressiveness and diversity of Phytophthora capsici on vegetable crops in Georgia. Ann. Appl. Biol. 160:191-200.