Dr. Andy Wyenandt is an Extension Specialist in Vegetable Pathology located at the Rutgers Agricultural Research and Extension Center (RAREC) in Bridgeton, NJ. Recent research by the vegetable pathology lab includes examining the effects of various fungicide programs on phytophthora blight (Phytophthora capsici) and anthracnose fruit rot (Collectotrichum spp.) control in bell pepper. Our lab is currently evaluating fungicides for the control of basil downy mildew (Peronospora belbahrii), a new and important disease of basil in the United States. In collaboration with Dr. James Simon’s lab, a breeding program has been developed to locate sources of resistance to basil downy mildew.
BOOKS
- Fungicide Resistance in North America, 2nd 2019. Katherine L. Stevenson, Margaret T. McGrath, and Christian A. Wyenandt (eds). The American Phytopathological Society, St. Paul, MN.
CHAPTERS IN BOOKS
- Leadbetter, A., McGrath, M.T., Wyenandt, C.A., and K. Stevenson. An Overview of Fungicide Resistance and Resistance Management – History and Future Trends. Chapter 1 in: Fungicide Resistance in North America, 2nd Katherine L. Stevenson, Margaret T. McGrath, and Christian A. Wyenandt (eds). The American Phytopathological Society, St. Paul, MN.
- McGrath, M. T., Wyenandt, C. A., and Stevenson, K. L. 2019. Occurrence of Fungicide Resistance in Pathogens of Non-Solanaceous Vegetable Crops. Chapter 23 in: Fungicide Resistance in North America, 2nd Katherine L. Stevenson, Margaret T. McGrath, and Christian A. Wyenandt (eds). The American Phytopathological Society, St. Paul, MN.
RELEVANT PUBLICATIONS
Rajmohan, N., Price, D., Buckley, R., Komar, S.J., Bamka, W.J., Petit, E.A., Cabrera, R.I., Gianfagna, T., Simon, J.E., and Wyenandt, C.A. 2022. First report of powdery mildew caused by Golovinomyces ambrosiae on industrial hemp in New Jersey. Plant Dis. First Look (02/07/22) online at First Look <https://doi.org/10.1094/PDIS-12-21-2657-PDN>
Patel, J.S., Wyenandt, C.A., and McGrath, M.T. 2021. Effective downy mildew management in basil using resistant varieties, environmental modifications, and fungicides. Plant Health Progress 22: 226-234.
Patel, N., Patel, R., Wyenandt, C.A., and Kobayashi, D.Y. 2021. First report of Pseudomonas chicorii causing bacterial leaf spot of romaine lettuce (Lactuca sativa var. longifolia) and escarole (Chicorium endivia) in New Jersey. Plant Dis. 105: 1450.
Brindisi, L., Arora, V., Kenigsbuch, D., Ward, D.L., Wyenandt, C.A., Dudai, N., Gonda, I., and Simon, J.E. 2021. Rapid screening methods to identify chilling tolerance in sweet basil (Ocimum basilicum L.) Journal of Medicinally Active Plants 10:1-10.
Homa, K., Barney, W.P., Davis, W.P, Guerrero, D., Berger, M.J., Lopez, J.L., Wyenandt, C.A., and Simon, J.E. 2021. Cold plasma treatment strategies for the control of Fusarium oxysporum f. sp. basilicum in sweet basil. HortScience 56:42-51.
Li, Y., Heckman, J., Wyenandt, A., Mattson, N., and Both, A.J. 2020. Potential benefits of silicon nutrition to hydroponically grown sweet basil. HortScience 55: 1799-1803.
Li, Y., Wyenandt, C.A., Both, A.J., and Heckman, J.R. 2019. Applying wollastinite to soil to suppress powdery mildew in pumpkin. HortTechnology 29:811-820.
Patel. N., Kobayashi, D., Noto, A.J., Baldwin, A.C., Simon, J.E., and Wyenandt, C.A. 2019. First report of Pseudomonas chicorii causing bacterial leaf spot on sweet basil (Ocimum basilicum) in New Jersey. Plant Dis. 103:2666.
Rajmohan, N., Wyenandt, C.A., Simon, J.E., and Gianfagna, T.J. 2019. First report of Golovinomyces monardae causing powdery mildew on spearmint in New Jersey. Plant Dis. 103:2868.
Patel, N., Baldwin, A., Patel, R., Vaiciunas, S., Wyenandt, A., and Kobayashi, D. 2019. First report of Dickeya dianthicola causing blackleg and soft rot on potato (Solanum tuberosum) in New Jersey, U.S.A. Plant Dis. 103:146.
Pyne, R.M., Honig, J.A., Vaiciunas, J., Wyenandt, C.A., and Simon, J.E. 2018. Population structure, genetic diversity and downy mildew resistance among Ocimum species germplasm. BMC Plant Biology 18:69 <doi.org/10.1186/s12870-018-1284-7>
Wyenandt, C.A., McGrath, M.T., Everts, K.E., Rideout, S.L., Gugino, B.K., and Kleczewski, N. 2018. Fungicide resistance management guidelines for cucurbit downy and powdery mildew in the mid-Atlantic and Northeast regions of the United States in 2018. Plant Heath Progress 19: 34-36. <doi:10.1094/PHP-12-17-0077-BR>
Wyenandt, C.A., Maimone, L.R., Homa, K., Madeiras, A.M., Wick, R.L., and Simon, J.E. 2018. Detection of downy mildew on seed of basil following field infection in southern New Jersey. HortTechnology 28:637-641.