Johanna Wesche

Graduate Research Assistant
Plant and Environmental Sciences Department

Office: 200 BRC
Phone:

Email: jwesche@clemson.edu

Educational Background

Ph.D. Plant and Environmental Science
Clemson University 2023-Present

M.S. Plant Science
Osnabrück University of Applied Sciences, Germany 2020-2022

B.S. Horticulture
Osnabrück University of Applied Sciences, Germany 2017-2020

Profile

I am a PhD student working with Dr. Guido Schnabel. My research focuses on plant pathology of fruit crops, fungicide resistance management and biological control. For my PhD, I am studying the interactions between DMI fungicides and biorational fungicides based on Pseudomonas chlororaphis and Bacillus subtilis.

Extension and Outreach

Technical Reports & Extension Articles:

2024 Schnabel, G., Hopkins, J. A. and Wesche, J. Efficacy trials with biofungicide Howler EVO against strawberry diseases. The South Carolina Cooperative Extension published October 2, 2024. https://scgrower.com/2024/10/02/efficacy-trials-with-biofungicide-howler-evo-against-strawberry-diseases/.

2024 Holthusen, H. H. F., Kruse, P. and Wesche, J., Wirkung von Pyrimethanil auf Pilzkrankheiten kühl gelagerter Äpfel (German)/ Effect of pyrimethanil on fungal diseases of cold-stored apple. Mitteilungen des Obstbauversuchsringes des Alten Landes 79: 292-299.

2024 Wesche J., Hopkins J. A. and Schnabel G. Combinations of biological and synthetic fungicides for control of brown rot in nectarine, 2023. PRMR 18:PF011.

2024 Wesche J., Gelain, J., Hopkins J. A. and Schnabel G. Efficacy of biorational fungicides for control of preharvest and postharvest green fruit rot in peach, 2023. PDMR 18:PF012.

2024 Kaur H., Wesche J., Hopkins J. and Schnabel G. Efficacy of fungicide programs for control of peach scab in peach, 2023. PDMR 18:PF037.

2023 Wesche J. and Weber R. W. S., Welche Fungizide könnten gegen Neonectria-Fruchtfäulen wirken? (German)/ Which fungicides could be effective against Neonectria fruit rot? Mitteilungen des Obstbauversuchsringes des Alten Landes 78: 171-178.

2021 Wesche J., Ebner E., Frank G., Höller, I. and Guerra W., Blühtermine alter und neuer Apfelsorten in Südtirol/ Flowering times of old and new apple varieties in South Tyrol/ Epoche di fioritura di antiche e nuove varietá di melo in Alto Adige. (German/ English/ Italian Version). Laimburg Journal 03/2021.

Publications

Peer-reviewed:

2024 Wesche J., Wu P. Luo C.-X. and Schnabel G., Pyrrolnitrin in Pseudomonas chlororaphis strain ASF009 natural products reduces constitutive and DMI-induced MfCYP51 gene expression in Monilinia fructicola. in press, Plant Disease.

2024 Kaur, H., Wesche, J., Gelain, J., Minzheng C. and Schnabel G., Characterization and fungicide sensitivity of Gnomoniopsis fructicola causing Gnomonia Leaf Blotch of strawberry in the Carolinas. in press; Plant Disease.

2024 Wesche J., Zheng Z., Luo C.-X. and Schnabel G., Pseudomonas chlororaphis metabolites reduce MfCYP51 expression and yield synergistic efficacy in mixture with reduced rates of propiconazole against DMI-resistant Monilinia fructicola isolates. In press, Plant Disease.

2024 Wesche J., Wu P., Faust J., Luo C.-X. and Schnabel G., Bioproducts of Pseudomonas chlororaphis suppress DMI fungicide-induced CsCYP51A and CsCYP51B gene expression in Colletotrichum siamense and generate synergistic effects with metconazole and propiconazole. In press, Phytopathology.

2024 Wesche J. and Schnabel G., Influence of propiconazole and metconazole formulations on Bacillus subtilis vegetative cell growth and disease control of fruit crops. Phytopathology, 114:1515-1524.

2023 Wesche J. and Weber R. W. S., Fungicide Sensitivity in the European Canker Fungus, Neonectria ditissima. Erwerbs-Obstbau, 65:2175-2187.

2023 Wesche J. and Weber R. W. S., Are microconidia infectious principles in Neonectria ditissima? Journal of Plant Disease and Protection 130:157-162.

Links