Phillip L Martin

Phillip L Martin

  • Ph.D. Student
  • NSF Graduate Research Fellow
  • Advised by: Dr. Kari Peter
PO Box 330, 290 University Drive
Biglerville, Pennsylvania 17307


  • B.A. Biology, Minor in Chemistry, Bucknell University, 2016
  • A.A. Biology, Harrisburg Area Community College, 2014


Phillip grew up on a diversified hog, chicken and crop farm in New Holland, PA. He worked for an organic dairy farmer for several years, and did a stint in new home construction. His interests in crops and soils led to his pursuit of an education in the agricultural sciences.

At Penn State his research interests focus on bitter rot in apples caused by a Colletotrichum spp. complex. Specifically, he is researching the epidemiology and population biology of bitter rot, checking for fungicide resistance, and testing improved management practices, all of which will be incorporated into a comprehensive fruit rot control plan.

Broadly, his research interests include plant and soil health, integrated pest management, and food security. Other interests include history, international relations, politics, religion, and cross cultural interactions. As a member of Pennsylvania’s large plain community, he hopes to encourage mutual respect and understanding between scientific and conservative religious communities.



Miele M., Irving B., Wenrich B., Martin P. and Rovnyak D., (2016). Reproducibility and Stability of Aqueous Metabolite Levels in Extracted Serum by NMR Spectroscopy. Current Metabolomics, 4. DOI: 10.2174/2213235X04666160711160340


Martin P., Krawczyk T. and Peter K. (2019). Bitter rot of apple causal species distributions and climatic correlations in Pennsylvania. (abstr.) Am. Phytopathol. Soc. Northeast Div. 78:15.

Martin P., and Peter K. (2019). Spore dispersal patterns and apple infection timing by Colletotrichum fioriniae, the main bitter rot fungus of apples in Pennsylvania. (abstr.) Phytopathology. 109:S2.6-S2.7.

Martin P., and Peter K. (2018). Colletotrichum Species Composition and Fungicide Tolerance in Isolates Causing Bitter Rot of Apples in Pennsylvania. (abstr.). Phytopathology. 108.S1.1:19. DOI: 10.1094/PHYTO-108-10-S1.1


Martin P., Krawczyk T., Lehman B., and Peter K. (2018). Bitter rot of apple: What we learned in 2018. Proc. 94th Annu. Cumberland-Shenandoah Fruit Work. Conf. 94:92–94.


Martin P., Krawczyk T., Lehman B., and Peter K. (2019). Assessment of Resistance to Pre- and Postharvest Site-specific Fungicides in Populations of Fungi that Cause Bitter Rot in Pennsylvania Orchards. Pennsylvania Fruit News. 99:30–31.

Martin P., Krawczyk T., Lehman B., and Peter K. (2018). Getting the Upper Hand on Bitter Rot of Apples: Understanding the Fungal Culprits, Epidemiology, and Fungicide Resistance. Pennsylvania Fruit News. 98:26–27. 

Poster Presentations

3rd Partnerships in Biocontrol, Biostimulants & Microbiome Conference (2018). Endophytic Colletotrichum fioriniae as a possible inoculum source for bitter rot of apple. Philadelphia PA 

21st Penn State Plant Biology Symposium. (2018). The lifestyles, hosts and sources of Colletotrichum fioriniae and their relevance in causing bitter rot on apple. University Park PA 

ΓΣΔ Research Exposition. (2018). Getting the Upper Hand on Bitter Rot of Apples: Understanding the Fungal Culprits, Epidemiology, and Control Strategies. University Park PA